A force of $10 N$ acts on a body of mass $0.5 k g$ for $0.25 s e c$ starting from rest. What is its momentum now?

2.5 N / s e c

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0.25 N / s e c

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0.5 N / s e c

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0.75 N / s e c

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Solution

The correct option is A $2.5 N / s e c$
$F t = m V_{2} - m V_{1} ⟹ 10 \times 0.25 = P_{t} - P_{i}, P_{t} = 2.5$

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