If a force of 250 N act on body, the mom...

If a force of 250 N act on body, the momentum acquired is 125 `kg -m//s` . What is the period for which force acts on the body

A

0.5s

B

0.25s

C

0.4s

D

0.2s

Verified by Experts

The correct Answer is:

A

By Newton's second law of motion,
`F= ("Change in momentum (mv)")/("Time")`
`therefore t=(mv)/(F) = (25)/(250)= 0.5 s`

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