Question

A bus decreases its speed from 80 m/s to 60 m/s in 2 minutes. Calculate the acceleration of the bus.

Answer 1

Answer:

-0.167 m/s²

Explanation:

Initial velocity, u= 80 m/s

Final velocity, v = 60m/s

Time, t =2 minutes = 120 seconds

Using first equation of motion,

v=u+at

a=(v-u)/t = (60-80)/120 = (-20)/120 = -0.167 m/s²