Question

a bus decreases its speed from 80km/h to 60km/h in 5 secs. find the acceleration of the bus?

Answer 1

a= change in velocity/time taken
a = 80 - 60 km/h / 5
a = 20km/h/ 5
a = 4km/h

Answer 2

acceleration = change in velocity/time taken
acceleration = 80 - 60/5
acceleration = 20/5(km/h)
acceleration = 4 km/h
hope this helps.....................