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Question

A force acts on a body of mass 3 kg such that its velocity changes from 4 m s1 to 10 m s1.Calculate the change in the momentum of the body.

A
2 kg m s1
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B
14 kg m s1
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C
18 kg m s1
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D
42 kg m s1
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Solution

The correct option is C 18 kg m s1
A force acts on a body of mass 3 kg such that its velocity changes from 4 m/s to 10 m/s
change in momentum
Δp=m(v1v2)=3(104)=18kgm/s

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