Question

a train moving with a velocity of 20 metre per second is brought to rest by applying brakes in 5 seconds calculate the retardation.​

Answer 1

Answer:

Given that

v =20 m/sec

U=0

T=5sec

A = V-U/T

0-20/5

-20/5

-4m/s^2

Answer 2

Answer:

Pls find ans in pic

Explanation: