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A tortoise and hare start from rest and have a race. As the race begins, both...
A tortoise and hare start from rest and have a race. As the race begins, both...
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 1.4 m/s2 for 4 seconds. It then continues at a constant speed for 11.4 seconds, before getting tired and slowing down with constant acceleration coming to rest 84 meters from where it started. The tortoise accelerates uniformly for the entire distance, finally catching the hare just as the hare comes to a stop. 4)...
Two cars start from rest at a red stop light. When the light turns green, both...
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.6 m/s2 for 3 seconds. It then continues at a constant speed for 7.8 seconds, before applying the brakes such that the car’s speed decreases uniformly coming to rest 178.16 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the...
Two cars start from rest at a red stop light. When the light turns green, both...
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.9 m/s2 for 4.7 seconds. It then continues at a constant speed for 10.2 seconds, before applying the brakes such that the car's speed decreases uniformly coming to rest 254.16 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the...
In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a...
In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a constant rate until it either reaches its maximum speed or crosses the finish line. Car A has an acceleration of 11.6 m/s2 and a maximum speed of 108 m/s. Car B has an acceleration of 11.7 m/s2 and a maximum speed of 91.0 m/s. Which car wins the race, and by how many seconds?
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration...
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration A for 3.0 seconds and then maintains a constant velocity. In terms of A, what is the position of the runner after 3.0 seconds? What is A if the sprinter finishes the race in 12.0 seconds? 13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s2? 14) What force is needed to stop a 1500 kg car in 40 m...
In a race, a homing pigeon accelerates from rest with constant acceleration for 40s to reach...
In a race, a homing pigeon accelerates from rest with constant acceleration for 40s to reach a cruising speed of 22 ms1 Assume that the pigeon flies in a straight line. Give numerical answers to two significant figures. (a) What is the acceleration of the pigeon? (b) Over what distance does the pigeon accelerate? (c) Draw a graph of the velocity v (in metres per second) of the pigeon 12 121 against the time t (in seconds), from the time...
A sprinter in a 100m race accelerates from rest at a rate of 5.0m/s^2. She maintains...
A sprinter in a 100m race accelerates from rest at a rate of 5.0m/s^2. She maintains this acceleration for a period of 6.0s. Once she has reached her top speed, she continues to run at her top speed for the rest of the race. Q. calculate the total time take for the sprinter to run the 100m race. - how do I get the time while accelerating and time while at constant velocity? Could you please explain how EASY and...
Car A and B start a race from rest. Car A starts with an acceleration of...
Car A and B start a race from rest. Car A starts with an acceleration of 100 m/s^2 and after 10s increases with acceleration to 200 m/s^2. Car B starts with an acceleration of 50 m/s^2 and after 5s increases the acceleration to 300 m/s^2. 1) What is the distance between cars after 1s 2) What is the velocity of each car after 1s 3) After 30 seconds which car is ahead?
Two automobiles are involved in a race over level ground. Both cars begin at rest. The...
Two automobiles are involved in a race over level ground. Both cars begin at rest. The Andi accelerates ar 4 for T seconds and then travels at constant velocity for the rest of the race. The Buick accelerates at A/2 for 27 seconds and then travels at constant velocity for the rest of the race. Determine the distance (d) between the two cars, at the instant ? - 2T, as a function of A and T. Motion Diagram SOCKS a...
Two cars start from rest. Both cars accelerate at a constant rate for a certain period....
Two cars start from rest. Both cars accelerate at a constant rate for a certain period. Car 1’s acceleration is twice Car 2’s acceleration; Car 2 accelerates for twice as long as Car 1. Which car covers more distance during its period of acceleration? By what factor? assume g=10m/s^2
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.9 m/s2 for 4.7 seconds. It then continues at a constant speed for 10.2 seconds, before applying the brakes such that the car's speed decreases uniformly coming to rest 254.16 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the...
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration A for 3.0 seconds and then maintains a constant velocity. In terms of A, what is the position of the runner after 3.0 seconds? What is A if the sprinter finishes the race in 12.0 seconds? 13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s2? 14) What force is needed to stop a 1500 kg car in 40 m...
In a race, a homing pigeon accelerates from rest with constant acceleration for 40s to reach a cruising speed of 22 ms1 Assume that the pigeon flies in a straight line. Give numerical answers to two significant figures. (a) What is the acceleration of the pigeon? (b) Over what distance does the pigeon accelerate? (c) Draw a graph of the velocity v (in metres per second) of the pigeon 12 121 against the time t (in seconds), from the time...
Two automobiles are involved in a race over level ground. Both cars begin at rest. The Andi accelerates ar 4 for T seconds and then travels at constant velocity for the rest of the race. The Buick accelerates at A/2 for 27 seconds and then travels at constant velocity for the rest of the race. Determine the distance (d) between the two cars, at the instant ? - 2T, as a function of A and T. Motion Diagram SOCKS a...
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