Question

A car travelling with a velocity of 10 m/s came to rest in 4 seconds after the brake is applied .Then what is the acceleration of the car?​

Answer 1

Explanation:

We can use v = u +at

⇒ 0 = 10 + 4a

⇒4a = -10

∴ a = -10/4

∴ Acceleration = -2.5m/s²