Question

A train is travelling at 36kmh.it is stopped in10 sec after applying brakes.calculate the acceleration if train

Answer 1

u = 36 kn/hr = 10 m/s
t= 10 s
v = 0
therefore, 
Acceleration = (v-u)/t
= (0-10)10
= -1 m/s^2

therefore,
Retardation = 1 m/s^2