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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
300%
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D
175%
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Solution

The correct option is A $$100\%$$

Kinetic energy is given by

K=V2/(2M)……………(1)

When KE increases by 300%, the value of KE becomes 4 times it's original value.

 from equation (1) that v becomes 2V

So, V increases by 100%.


Physics

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