A bus starts from rest with the velocity 150 m/s in 20 seconds. Calculate its acceleration.

7.5

Explanation:

Velocity÷time

acceleration (a) =?

find velocity (v) =150m/s

initial velocity (u) =?

time taken (t) =20s

we know that

a=v-u/t

a=150-u/20

a=150/20

a=7.5m/s

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an energy transformation flow diagram is shown

where is it ?