Question

A bus starting from 80 kilometre per hour to 60 kilometre per hour in 5 second. Find the acceleration of the bus.

Answer 1

Intial velocity = 80km/h = 288m/s

final velocity = 60km/h = 216m/s

time taken = 5 sec

acceleration = (v-u)/t =(216- 288)/5= -14.4 m/s^2

Therefore the bus decelerates by 14.4 metre per second square.