Question

A bus decreases it' s speed from 80 k.m / hrs to 60 k.m / hrs in 5 sec Find the acceleration of bus ?

Answer 1

Answer:

-0.11 m/s

Explanation:

u = 80 km/hr = 80×5/18 m/s

v = 60 km/hr = 60×5/18 m/s

t = 5 s

a = (v-u)/t

a = {(60-80)×5/18}/5

a = (-20×5)/(5×18)

a = -20/18

a = -10/9 m/s

a = -0.11 m/s