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Question

If the K.E. of a body is increased by 300%, its momentum will increase by


A

100%

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B

150%

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C

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D

175%

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Solution

The correct option is A

100%


Let initial kinetic energy, E1=E

Final kinetic energy. E2=E+300

As P EP2P1=E2E1=4EE=2P2=2P1

P2=P1+100

i.e. Momentum will increase by 100%.


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