Question

A bus driver applies the break and slows down the velocity of the bus from 60km/h to 30km/h in 5s.Calculate the acceleration of the bus.Express your answer in SI units

Answer 1

initial velocity :60km/h = 60*5/18=16.6m/s
final veolcity: 30km/h=8.3m/s
time=5
acceleration =8.3-16.6/5
= -8.3/5
=1.66

Answer 2

Answer:

-1.67ms^-2 is the answer.