Question

A bus decreases its speed from 80km/h to 60km/h in 5s. Find the acceleration of the bus​

Answer 1

acceleration =change in velocity ÷ time taken so,ans is 12m/s.

Answer 2

u=80km/h

v=60km/h

t=5s

a=v-u/t

=60-80/5

=-20/5

=-4km/h^2