Question

A bus running at the speed of 18km/h is stopped in 2.5 second by applying the brakes . calculate the retardation produced

Answer 1

u=18km/h
=5m/s
v=0m/s
t=2.5sec
Retardation =v-u/t
=0-18/2.5
=-18/2.5
=-18X10/25
=-36/5
=-7.2m/s^2