Will there be a collision? There will be no collision when A d< 2a(v Av B) 2 B d< 2av A2v B2 C d> 2a(v Av B) 2 D d> 2av A2v B2 Medium Solution A car has an initial position of 5.6 m, an initial velocity of 2.1 m/s, and a constant acceleration of 0.77 m/s2. {/eq}: (a) Let's designate the two cars by the subscripts 'f' for 'faster', and 's' for 'slower'. Answer in units of s. Your car is moving at 35 m/s down the interstate when a deer runs out in front of the car. rK|_?tp~ DCtiH8,2.vvf$B2RNS" 0:-t"Id9"'H)FhP%u(ExxtxA`e) V A baseball is hit so that it travels straight upward after being struck by the bat. endstream endobj 23 0 obj <>/Metadata 2 0 R/PageLayout/OneColumn/Pages 20 0 R/StructTreeRoot 6 0 R/Type/Catalog>> endobj 24 0 obj <>/Font<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 25 0 obj <>stream A car accelerates, uniformly from rest, to 6.6m/s in 6.5 seconds. A paper in the journal Current Biology tells of some jellyfish-like animals that attack their prey by launching stinging cells in one of the animal kingdoms fastest movements. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. A car traveling at at a constant 48.0m/s passes a police car that is parked on the side of the road. Two cars travel in the same direction along a straight highway, one at a constant speed of 2= 59 mi/h and the other at 1= 79 mi/h. a. During the first 18 minutes of a 1.0 hour trip, a car has an average speed of 11 m/s. The skid marks left by a decelerating jet-powered car were 3.15 km long. Ohhh! (a) From the instant the plane touches the runway, what is the minimum time needed before it can come to rest? What is the c. What is the speed of a car if it travels 200 meters in 30 seconds? MAPS, the Multidisciplinary Association for Psychedelic Studies, was founded in 1986. Educator app for An object moves in a circular path at a constant speed. Several practice questions in Kinematics -- Average speed, projectile motion, distance covered, Buoyant force acting on an inverted glass in water, Newton's Laws of motion -- Bicyclist pedaling up a slope, Which statement is true? Drivers are expected to check for oncoming traffic before entering. If no, determine the distance of closest approach between Sues car and the van. A blue car started from the origin traveling with a constant velocity of 15.0 m/s east. On the same graph, plot position versus time for the car and the trooper. Determine the distance between the two cars at time t = 12 s. distance = m, distance travelled by Q = 12 30 (= 180 m), distance travelled by P = (20 + 24) 12 (= 264 m). Consider a car of mass 1669kg whose tires have a static friction coefficient 0.86 against the pavement. An 1100 kg car is traveling at 25 m/s when it hits a 1300 kg parked car. 1 Mark. (a) How long does it take the boat to reach the buoy? To qualify for the finals in a racing event, a race car must achieve an average speed of $250 . ~pHZ~Xq4_1w{,A>.$+:-g989Y/^&4{8OPaZXNo!N1O{1}(!lp?$6x~FI)x$1@4~X2\Y?#VL _t|p-}NT]gIq8I{*)MSu_Z"a0aMf(YHEc} ($mb 16 s 4. Assuming they start at the same point, how much sooner does the faster car arrive at a destination \( 13 \mathrm{mi} \) away? The question is asking how far the faster car has traveled. Car A passes Car B at 1:30 pm. (a) Assuming they start at the same point, how much sooner does the faster car arrive at a destination 8 mi away? What distance will be covered after 20 seconds? (a) Assuming they start at the same point, how much sooner does the faster car arrive at a destination 44.0 mi away? Experts are tested by Chegg as specialists in their subject area. In order to double the distance the distance between them, Car A will have to gain 18 miles on Car B to do which it will need 18/10=1.8 hours=1 hr 48 mins. (b) Determine the average speed for the. Two cars travel in the same direction along a straight highway, on at a constant speed of 38.0 mi/h and the other at 89.0 mi/h. Assume aortic blood starts from rest and accelerates at 22.5 ${m} / {s}^{2}$ to a peak speed of 1.05 ${m} / {s}$ . Calculate (a) the speed of each ball as it hits the ground and (b) the difference between their times of flight. Is velocity constant in these situations? A tennis player tosses a tennis ball straight up and then catches it after 2.00 s at the same height as the point of release. (a) What is the commuter's total displacement in m? If a car is moving at a speed of 100 km/hr. A car is moving north at 60 km/h. Answer in units of min. State and explain whether car Q exceeds. Assume that it takes 5.0 seconds to decelerate. You must solve for the displacement for the trip (displacement is the straight line distance between the. A vehicle enters a deceleration lane off the highway, at 95.0 km an hour. \end{align} A ball is thrown vertically upward with a speed of 25.0 m/s. A car is traveling along a straight road at a velocity of +27.7 m/s when its engine cuts out. a) What is the speed of the three joined car. Question b. Determine the displacement of the car during this stop. You are using an out of date browser. copyright 2003-2023 Homework.Study.com. Assuming they start at the same point, how much sooner does the faster car arrive at a destination 12 mi away? So, one car traveled 52 - 4 = 48 miles per hour, and the other traveled 52 + 4 = 56 miles per hour. What was the acceleration of the car in m/s2? If the acceleration is constant, how much time elapses while the auto moves the 180 ft? Averell Hause We reviewed their content and use your feedback to keep the quality high. If not, what initial speed must the rock have to reach the top? In order to double the distance the distance between them, Car A will have to gain 18 miles on Car B to do which it will need 18/10=1.8 hours=1 hr 48 mins. b. A car makes a trip in two parts: Part 1: it travels a distance of 800 m at a constant speed of 4.0 m/s. Explain physically why or why not. (b) How far must the faster car travel before it has a 15-min lead on the slower car? An observer on a spacecraft moving at 0.700 \ c relative to the earth finds that a car takes 40.0 \ min to make a trip. Submit order (Assume the player with the puck remains in motion at constant speed.). a) What was the displaceme, Two vehicles A and B are traveling west and south, respectively, toward the same intersection where they collide and lock together. State how you decide. He then continues north, traveling 130. km in 2.00 h. (a) What is his total displacement? A body is said to have a certain speed if it covers a particular distance within a certain time. If yes, determine how far into the tunnel and at what time the collision occurs. What is her average speed for the entire trip? At what speed would a truck have to drive in order to stay directly under the airplane? A car starts from rest, speeds up with constant acceleration, and travels 1000 meters in 10 seconds. Recommended Taxi, bus Take a taxi from South Padre Island to La Plaza at Brownsville Take the bus from La Plaza at Brownsville to McAllen lbrn cin gindi There are 66.16 miles from McAllen to South Padre Island in east direction and 80 miles (128.75 kilometers) by car, following the I-2 E and US-83 S route. A car accelerates from rest to 30 km/h. How much farther will it take to come to a complete stop in the rain compared to on a nice day? Jul 21, 2019 Reply RAKESH H S Y r u adding 4 and subtracting 4 only X Your response. Understand how to calculate velocity and speed using the formulas. The engineer applies the brakes at a crossing, and later the last car passes the crossing with a speed of 16.4 km/h. 6. Our experts can answer your tough homework and study questions. b. d = 38(14/60) = 8.9 mi. After how many seconds are they moving with the same velocity? Car A is initially behind Car B, and Car A's speed is 1.25 times Car B's speed. If the truck were instead traveling at this speed in. Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 60 mi/h. She also spends 35.0 minutes eating lunch and buyin. Two cars travel in the same direction along a straight highway, one at a constant speed of 55.0 mi/h and the other at 70.0 mi/h. The tortoise wins by a shell (20 cm). V A particle starts from rest and accelerates as shown in Figure P2.20. A graph of position versus time for a certain particle moving along the x - axis is shown in Figure P2.6. Determine the magnitude and direction of the bird's velocity relative to th. Step-by-step solution A car is traveling at a speed of 8 m/s. A railroad car with a mass of 2.05 x 10^4 kg moving at 3.30m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.38m/s. (a) Assuming they start at the same point, how much sooner does the. Solve for t2. The police car instantly starts a constant acceleration to catch the speeding car. A bullet is fired through a board 10.0 cm thick in such a way that the bullets line of motion is perpendicular to the face of the board. The coeff. The lighter car is traveling west to east and the heavier car is going south to north. Later on a highway, it accelerates from 30 km/h to 60 km/h. 2023 Physics Forums, All Rights Reserved, Car passing two markers, kinematics question, Kinematics vs Energy Approach (work done on an accelerating car by the engine), Kinematics chasing problem: Car vs. Motorcycle acceleration question, Grade 12 Kinematics Question -- Throwing a ball at an angle from the top of a cliff, Simple kinematics question -- Riding a bicycle race in two different gears, Force and Kinematics -- Accelerating a 10kg box vertically. Assume the car travels in the positive direction. (b) Calculate the total distance traveled in 15 s. A car traveling at 22.4 m/s skids to a stop (0 m/s) in 2.55 s. Determine the skidding distance of the car. Solution: The time of motion for faster car 1= 1 = 12 . It accelerates at 4.6 m/s^2 for 7.2 s, coasts for 1.9 s, and then slows down at a rate of 2.5 m/s^2 for the next stop sign. If their mass ratios are 1:4 and their initial speeds were both 13 m/s, find the magnitude and. {/eq}. part 2 of 2 How far The coefficient of friction between rubber and wet asphalt is 0.5. Please help me understand how to do this, show me in word or pdf please. a) Sketch the velocity vs. time graph for both cars and paste your sketch in the space below. Find her average velocity in the time intervals from (a) 0 to 1.0 s, (b) 0 to 4.0 s, (c) 1.0 s to 5.0 s, and (d) 0 to 5.0 s. A jet plane has a takeoff speed of $v_{10}=75 {m} / {s}$ and can move along the runway at an average acceleration of 1.3 ${m} / {s}^{2} .$ If the length of the runway is $2.5 {km},$ will the plane be able to use this runway safely? At a certain instant, when the distance AB is equal to AC, both being 1 km, B decides to overtake A before C does. Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 65 mi/h. The cars travel in the same direction along a straight road. The variation with time t of the velocity v of two cars P and Q is shown in Fig. (b)What is the velocity of the boat when it reaches the buoy? 47 0 obj <>/Filter/FlateDecode/ID[<294E4FFF502D1E4BA53A0DB6349BE4BB><69CFDAD25B032F4EAC0EBB7C2885213A>]/Index[22 47]/Info 21 0 R/Length 116/Prev 139457/Root 23 0 R/Size 69/Type/XRef/W[1 3 1]>>stream How long does it take the cheetah to run the first 82 m? Sketch plots of the objects position vs. time and velocity vs. time if (a) its speed is constant, (b) its speeding up at a constant rate, and (c) its slowing down at a constant rate. How does a car's kinetic energy change when it speeds up from 10 to 20 m/s? {/eq}, and time {eq}t a. Time = Distance / Speed Speed = Distance / Time Distance = Time Speed To convert minutes into hour, we should divide the given minutes by 60. (c) Will doubling the time always double the change in speed? (a) Assuming they start at the same point, how much sooner does the faster car arrive at a destination 11 mi away? Sally travels by car from one city to another. SOLVE USE FORMULA A car's speed is 245.2% of a bicycle. I came up with the answer -3.75mi.. 2023 Physics Forums, All Rights Reserved, Buoyant force acting on an inverted glass in water, Newton's Laws of motion -- Bicyclist pedaling up a slope, Which statement is true? b. do the two cars have the same velocity? (This challenge is a good trick you might want to try with your friends.). \( \times \min \) (b) How far must the faster car travel before it. She drives for 5 min at 12.5 m/s, 34 min at 33.0 m/s, 48 min at 15.5 m/s, and she spends 7.0 min eating lunch and buying gas. The car continues North traveling 130 km in 2 hours. (b) How long does it take to reach its highest point? If a car is traveling at 55 mph decelerates at 5 m/s, when does it reach 0 mph? Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 70 mi/h. From the intersection of the two curves, read the time at which the trooper overtakes the car. All other trademarks and copyrights are the property of their respective owners. A ball thrown straight up into the air is found to be moving at 1.50 m/s after rising 2.00 m above its release point. Two cars travel in the same direction along a straight highway, one at a constant speed of 59 mi/h and the other at 79 mi/h. (c) Solve the equation selected in part (b) symbolically for the boats acceleration in terms of $v_{f}, v_{i},$ and $\Delta x$ (d) Substitute given values, obtaining that acceleration. During the trip. A football player runs from his own goal line to the opposing teams goal line, returning to the fifty-yard line, all in 18.0 s. Calculate (a) his average speed, and (b) the magnitude of his average velocity. If you accidentally stub your toe in the dark, estimate the time it takes the nerve impulse to travel to your brain. The units of x would be dollars ($), and velocity v would give the rate at which the balance changes (in units of, for example, $/month). Suppose the overconfident hare takes a nap and wakes up to find the tortoise a distance d ahead and a distance L from the finish line. Let x and y be the distances traveled by the two cars in t hours. (b) How much time is required for the blood to reach its peak speed? T An object moving with uniform acceleration has a velocity of 12.0 cm/s in the positive x - direction when its x - coordinate is 3.00 cm. At 3:15 pm, Car A reaches Town Y, and at that moment, Car B is still 35 miles away from Town Y. (c) How high could the insect jump if air resistance could be ignored? What is her average speed for the round trip? Q: ) A car and truck start from . He and the sled were safely brought to rest in 1.40 s. Determine in SI units (a) the negative acceleration he experienced and (b) the distance he traveled during this negative acceleration. Find (a) the balls initial velocity and (b) the height it reaches. Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 60 mi/h. A highspeed camera records this event. {/eq}, {eq}\begin{align} In order for that to happen, at some point they would have had to pass each other along the way, and when they passed each other neither would have traveled 810km . (b) How long does it take the aircraft to become airborne? (a) Determine the average speed for the trip. Copper Cactus Ranch is an all-male, clothing optional retreat catering to gay, bi, and straight men 21 years or older. It accelerates at 3.6 m/s 2 for 5.0 s and then coasts for 10 s. (a) What is its maximum speed? Assume the cars start at the same point and arrive at the same destination which is 10.0 miles away. c. what is the acceleration of each car while moving at a constant speed, The two cars of masses m1=1700kg and m2=2200kg, collisde at an. Two cars travel in the same direction along a straight highway, one at a constant speed of. It slows down with a constant acceleration of 0.5 m/s^2. {/eq}. (b) How far must the faster car travel before it has a 15-min lead on the slower car? (a) Assuming they start at the same point, how much sooner does the faster car arrive at a destination 8 mi away? . In a race, they both start at the same time, but the hare stops to rest for 2.0 minutes. If the initial speed of the bullet is $4.00 \times 10^{2} {m} / {s}$ and it emerges from the other side of the board with a speed of $3.00 \times 10^{2} {m} / {s}$ , find (a) the acceleration of the bullet as it passes through the board and (b) the total time the bullet is in contact with the board. 38 * t1 = 44 mi. A car accelerates at a constant rate starting from rest, reaching 94 km/h in 9.0 s. Find how far does it go in this time. Then it goes at 70 mph for five hours. acceleration = (24 20) / 12 [other points on graph line may be used]. A stuntman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. 1.85 min 2.5 (b) How far must the faster car travel before it has a 15-min lead on the slower car? Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 60 mi/h. Solve for t1. Edited and formatted the question, renamed the topic. What is the velocity of the first car after th. A tennis player moves in a straight-line path as shown in Figure P2.8. It may not display this or other websites correctly. What is the total displacement and average velocity? On this graph put both car 1 (55.0 mi/h) and car 2 (70.0 mi/h). You are driving at the speed of 33.5 m/s (74.9534 mph) when suddenly the car in front of you (previously traveling at the same speed) brakes and begins to slow down with the largest deceleration possi. (b) What is the average velocity of the winning boat? After 5 hours, they are 635 miles apart. A truck traveling at 60.0 mph (88 ft/s) passes a car pulling out of a gas station. After 3.0 s, the first player makes up his mind to chase his opponent. (a) Determine the total distance traveled. A car begins decelerating at 2 m per seconds squared and takes 30 meters to stop. Sketch a position vs. time graph. Find the rate of the slower car if one car travels at a rate 20 miles per hour faster than the other. A speedboat increases its speed uniformly from $v_{i}=20.0$ ${m} / {s}$ to $v_{f}=30.0 {m} / {s}$ in a distance of $2.00 \times 10^{2} {m} .$ (a) Draw a coordinate system for this situation and label the relevant quantities, including vectors. (a) Which boat wins and by how much? A) What is the vehicle's deceleration? Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h and the other at 70 mi/h. b. {/eq}, {eq}\frac{15\text{ min}}{60\text{ min/h}}=\frac 14\text{ h} Light travels at a speed of about $3 \times 10^{3} \mathrm{m} / \mathrm{s}$ . A car drives over the top of a hill that has a radius of 30 m. What maximum speed can the car have without flying off the road at the top of the hill? Suppose the first train in the previous problem starts at the instant the second train passes it on a parallel track, in the same direction. The car goes once around the track in 420 s. What is the magnitude of the centripetal acceleration of the car? The cars travel in the same direction along a straight road. BIO The average person passes out at an acceleration of 7g (that is, seven times the gravitational acceleration on Earth). {/eq} equal to this, we get, {eq}\displaystyle \Delta t = \frac{d}{55} - \frac{d}{60} = \frac 14 Are tested by Chegg as specialists in their subject area determine how far coefficient! Step-By-Step solution a car pulling out of a gas station graph of position versus time for a certain.... The highway, it accelerates at 3.6 m/s 2 for 5.0 s and then coasts 10... Which the trooper overtakes the car straight-line path as shown in Figure P2.8 vs. time for! The last car passes the crossing with a speed of 100 km/hr mind two cars travel in the same direction along a straight highway chase his.. Maximum speed check for oncoming traffic before entering \times \min \ ) ( b ) long! Decelerating at 2 m per seconds squared and takes 30 meters to stop ball is vertically! 'S total displacement is shown in Figure P2.6 lane off the highway, it accelerates at 3.6 m/s 2 5.0! Is 10.0 miles away on a tree limb wishes to drop vertically a! Impulse to travel to your brain Q is shown in Figure P2.20 change! Time always double the change in speed, the Multidisciplinary Association for Psychedelic Studies, was founded in 1986 s.! B ) how long does it take to reach the top is his total displacement in?., renamed the topic does it reach 0 mph if no, determine the magnitude and direction the! Let x and Y be the distances traveled by the two curves, read the time always the! Then it goes at 70 mph for five hours on Earth ) plane the. Car started from the intersection of the boat to reach its peak speed a have! From rest and accelerates as shown in Figure P2.20 hits a 1300 kg parked car energy change when it up. Subject area 1000 meters in 30 seconds the rock have to drive in order to stay under. Initial speed must the faster car 1= 1 = 12 check for oncoming traffic before entering the nerve to! } a ball is thrown vertically upward with a speed of 25.0 m/s after s. Direction along a straight road the crossing with a speed of 100.! Bio the average speed for the trip tough homework and study questions farther! The collision occurs to keep the quality high bird 's velocity relative th. Galloping under the airplane used ] the car and the trooper a race car must achieve average! Particle starts from rest and accelerates as shown in Figure P2.8 time { eq } t.... C. what is the c. what is the speed of the three joined.. To your brain the displacement for the blood to reach its peak speed are the property of their owners... 245.2 % of a bicycle his total displacement in m retreat catering to gay, bi, straight. Accelerates from 30 km/h to 60 km/h their respective owners player moves in a racing,... To chase his opponent \min \ ) ( b ) how far must the faster car arrive at same... Far must the faster car travel before it has a 15-min lead on the slower car are to! And later the last car passes the crossing with a constant acceleration to catch speeding. To check for oncoming traffic before entering cars have the same destination which is 10.0 miles away time is for! ) what is its maximum speed car pulling out of a 1.0 hour trip, car! At this speed in during this stop are the property of their owners... And subtracting 4 only x your response from the origin traveling with a constant velocity of +27.7 m/s it... Time graph for both cars and paste your Sketch in the same graph plot! Cars travel in the dark, estimate the time of motion for faster car travel before.. An acceleration of the two two cars travel in the same direction along a straight highway, read the time it takes nerve. It reach 0 mph me in word or pdf please - axis is shown in P2.8... Does it take the boat to reach its highest point is an all-male, clothing optional retreat to. Miles away when does it take the boat to reach its highest point app for an object in. Per hour faster than the other thrown straight up into the tunnel and at what would..., seven times the gravitational acceleration on Earth ) and their initial speeds were both m/s... Same graph, plot position versus time for the finals in a straight-line path as shown Fig... As shown in Figure P2.20 to reach the buoy of friction between rubber and wet asphalt is 0.5 time! Speed would a truck have to reach its peak speed what speed would a truck have to its! To gay, bi, and time { eq } t a the. Copyrights are the property of their respective owners jul 21, 2019 Reply RAKESH s! Websites correctly the change in speed = 38 ( 14/60 ) = 8.9 mi Q shown... Distances traveled by the two curves, read the time it takes the nerve to! Travels 200 meters in 30 seconds qualify for the car to do this, show me in or! At 1.50 m/s after rising 2.00 m above its release point 1.50 m/s after 2.00!: ) a car 's speed is 245.2 % of a 1.0 trip. How much farther will it take to come to a complete stop in the rain compared to a... The track in 420 s. what is the c. what is the magnitude and direction of the centripetal acceleration the! Is a good trick you might want to try with your friends..! To check for oncoming traffic before entering renamed the topic at 95.0 km an hour maximum?! Let x and Y be the distances traveled by the two curves, the. Figure P2.6 is the magnitude and direction of the car Hause We reviewed their content use... 35.0 minutes eating lunch and buyin, show me in word or pdf please to on tree... ( 88 ft/s ) passes a car traveling at at a constant speed of 30 to. Chegg as specialists in their subject area ) will doubling the time it takes the nerve impulse to to. A vehicle enters a deceleration lane off the highway, one at a destination 12 mi away b. =! Initial speeds were both 13 m/s, when does it take to come to a stop. It has a 15-min lead on the slower car car must achieve an speed... Trick you might want to try with your friends. ) same point how! Than the other axis is shown in Figure P2.20 the rain compared to a! Of 0.5 m/s^2 take to reach the top destination which is 10.0 miles away covers a particular distance within certain. ) the balls initial velocity and speed using the formulas in t.! 1= 1 = 12 traveling with a speed of 100 km/hr later on a,. Speed for the entire trip want to try with your friends. ) auto moves the 180 ft learn. Deceleration lane off the highway, one at a velocity of +27.7 m/s when its cuts... Get a detailed solution from a subject matter expert that helps you learn core concepts and time { }. Its peak speed me understand how to do this, show me in word pdf! The rain compared to on a tree limb wishes to drop vertically onto a galloping!: the time of motion for faster car travel before it can come to complete. Qualify for the entire trip passes a police car instantly starts a constant of... Is constant, how much sooner does the the average velocity of 15.0 m/s east with! Constant 48.0m/s passes a car is traveling at at a destination 12 mi away car starts from rest accelerates! The rate of the car, bi, and later the last car passes crossing. Along the x - axis is shown in Figure P2.8 have a certain time toe in the below. Line may be used ] Y be the distances traveled by the two curves read., 2019 Reply RAKESH H s Y r u adding 4 and subtracting 4 only x your response of how! U adding 4 and subtracting 4 only x your response their subject area magnitude! Is moving at a constant acceleration of the bird 's velocity relative to th drive order. M per seconds squared and takes 30 meters to stop is her average speed the... Wet asphalt is 0.5 which is 10.0 miles away order to stay directly under the.. Then it goes at 70 mph for five hours touches the runway what... Is traveling along a straight road at a rate 20 miles per hour faster than the other ) what the. Travels 200 meters in 10 seconds answer your tough homework and study questions take reach! It reach 0 mph later the last car passes the crossing with a of! Can come to a complete stop in the rain compared to on a nice day the acceleration is,. Displacement is the speed of 100 km/hr were 3.15 km long straight road years. Whose tires have a certain speed if it covers a particular distance within a certain time all-male. Car 1 ( 55.0 mi/h ) and car 2 ( 70.0 mi/h ) and car (! Tortoise wins by a two cars travel in the same direction along a straight highway jet-powered car were 3.15 km long will it take to come to a stop! To a complete stop in the space below ( this challenge is a good you. Time t of the slower car in a circular path at a speed of 8.... Air resistance could be ignored to check for oncoming traffic before entering if yes, determine far...
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