Question

.5 A body starts from rest, gains the speed 90km/h in 30 seconds. Find the distance covered and

acceleration of the body.​

Answer 1

Explanation:

We know,

A=change in velocity/time taken=v-u/t

Initial velocity(u)= 0

Final velocity(v)=90kmph=25m/s(From kmph to mps=90×5/18)

Time(t)= 30 sec

So, 25–0/30=5/6m/s.

Answer 2

We know,

A=change in velocity/time taken=v-u/t

Initial velocity(u)= 0

Final velocity(v)=90kmph=25m/s(From kmph to mps=90×5/18)

Time(t)= 30 sec

So, 25–0/30=5/6m/s.