At time t = 0 a car has a velocity of 16 m/s. It slows down with an acceleration given by a = 0.50t, in m/s2 for t in seconds. At the end of 2.0 s it has traveled: A) 0 B) 12 m C) 14 m D) 34 m E) 33 m.
The answer is E. I got D. Why is the answer E?
13. Find the magnitudes of the initial (at t 0) velocity and acceleration of the auto respectively At time t 0 a car has a velocity of 16 m/s. It slows down with an acceleration given by -0.50t, in m/s2 for t in seconds 14. Find the time when it stops 15. Find the distance it has traveled tt the end of 4.0 s 16. Find the distance it has traveled by the time it stops
A car traveling at 20 m / s slows down at a rate of 0.50m / s2. Calculate: a) The distance the car traveled when it stopped. b) The time it takes to stop. c) The distance traveled by the car in the first three seconds after it begins to decelerate.
3. A car travelling at 60.0 m/s forward slows down to 40 m/s forward in 2.5 seconds. Assuming that this acceleration continues, how many seconds would it take the car to slow to (a) 20 m/s forward? (b) rest? 4. A toy car is propelled forward from rest by a girl's hand reaching a velocity of 6 m/s in 0.40 seconds. It is then released and stops in 2 seconds. (a) With what acceleration did the car speed up (a...
At a time t 2.90 s, a point on the rim of a wheel with a radius of 0.240 m has a tangential speed of 50.0 m/s as the wheel slows down with a tangential acceleration of constant magnitude 10.2 m/s2. Part A Calculate the wheel's constant angular acceleration Part B Calculate the angular velocity at t 2.90 s Part C 0. Calculate the angular velocity at t =0 Part D Through what angle did the wheel turn between t = 0 and t...
Consider a car moving in the positive direction with an initial velocity of 37 m/s slows down at a constant rate of -1.5 m/s2. What distance does the car cover in 10 seconds in meters?
A car is traveling along a straight road at a velocity of +28.1 m/s when its engine cuts out. For the next 2.97 seconds, the car slows down, and its average acceleration is . For the next 4.30 seconds, the car slows down further, and its average acceleration is . The velocity of the car at the end of the 7.27-second period is +21.3 m/s. The ratio of the average acceleration values is = 1.37. Find the velocity of the...
A car is traveling along a straight road at a velocity of +46.9 m/s when its engine cuts out. For the next twelve seconds the car slows down, and its average acceleration is a1 . For the next six seconds the car slows down further, and its average acceleration is a2. The velocity of the car at the end of the eighteen-second period is +31.2 m/s. The ratio of the average acceleration values is . Find the velocity of the car...
consider a car moving in the positive direction with an initial velocity of 39m/s slows down at a constant rate of -0.5m/s square. the distance traveled by car is ____ m
A runner moving with an initial velocity of 15.4 m/s slows down at a constant rate of -2.9 m/s2 over a period of 2 seconds. (a) What is her velocity at the end of this time? (b) What distance does she travel during this process?
Consider a runner moving in the positive direction with an initial velocity of 5.8 m/s slows down at a constant rate of -0.7 m/s2 over a period of 2 seconds. What is her velocity at the end of this time? ______ m/s