Question

A train moving with the velocity of 20m/s in 5 seconds. Calculate retardation.

Answer 1

❄Actually welcome to the concept of the Kinematics of a body.

❄basically we know that, the retardation is the de-accelration of body in motion to come at position of rest.

❄so here, we are given with,

❄V =0, U= 20 , a=? , t= 5

❄a = v-u/t

❄a = 0-20/5

⭐a= -4 m/s^2