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A force of certain magnitude acts on a b...

A force of certain magnitude acts on a body. The mass of the body is 10 kg. The time for which the force acting is 10 s. This force makes the body move at a distance of 50 m in 5 s after the force cease to act on it
The final velocity of the body is

A

5m `s^(-1)`

B

10m `s^(-1)`

C

15 m `s^(-1)`

D

20 m `s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Here, initial velocity of the body, u = 0 mass of the body = 10 kg and time of force = 10 s After the force ceases, the body covers 50 m in 5 s. Therefore, final velocity of the body,
f `v=("distance" )/("time")=50/5=10 m s^(-1)`
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