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Question

A hockey player applies an average force of 60 N to 250 g hockey puck for a time of 100 ms. The impulse experienced by the hockey puck is

A
8 N-s
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B
6 N-s
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C
12 N-s
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D
10 N-s
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Solution

The correct option is B 6 N-s
Given:
Average force ;F=60 Ntime(t)=100 ms=100×103 s=0.1 s
We know,
Impulse J=Ft
=60×0.1=6 N-s

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