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

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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
(1) 0.5 sec
(2) 0.2 sec
(3) 0.4 sec
(4) 0.25 sec

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