A bus moving with a speed of 54km/h on applying brakes it stopped in 8 sec calculate acceleration

A bus moving with a speed of 54km/h on applying brakes it stopped in 8

1.	A bus moving with a speed of 54km/h on applying brakes it stopped in 8 sec calculate acceleration
Answer» Initial Speed (u)= 54 km /hr = 54 1000 m / 3600 s = 545/18 = 15 m/s ( 1km = 1000 m and 1hr = 60 mins = 6060 seconds = 3600 seconds) Time = 8 seconds Final Velocity (V) = 0\xa0we know that , v = u + at 0 = 15 + a8 0 = 15 + 8a a= -15/8 m/s² Therefore , acceleration is -15/8 m/s²\xa0