Question

what bus dicreases is speed 80km per hour to 60km per hour in 5sec. find the acelumotion of bus

Answer 1

u = 80km/h
= 400/18 m/s

v = 60km/h
= 300/18 m/s

t = 5 seconds


We know

a = v-u/t
a = (300/18-400/18)/5
a = (-100/18)÷ 5
a = -1.11m/2

Negatibe sign shows that there was a retardation.

Hope this helps you..!

Answer 2

Given that,


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