Question

a bus decreases its speed from 90 km h-1 to 60 km h-1 in 15 seconds. find the acclearation of the bus

Answer 1

Answer:

Explanation:

Acceleration is equal to change in velocity per unit time.

First change the unit of velocity to m/sec by multiply it by 5/18

We got,

V(initial)=25 m/sec

And v final =16.66 m/sec

By application of a=(vf-vi)/t

We got 55.6 m/s²