Question

The velocity of a car was 30m/s when the driver pushed the brake of the car and it stopped after 2 seconds. Assume that the acceleration was constant during the braking time.find the acceleration and the distance cut during the braking

Answer 1

the "acceleration" is -15m/s (it's negative because it is slowing down, not speeding up[it might just be a positive 15m/s if it is called deceleration and not acceleration])

Explanation:

30m/s (starting speed)/2 (the number of seconds it took to stop from 30m/s