A light and a heavy body have equal kinetic energies. The light body has greater momentum.

True

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False

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Solution

The correct option is B
$A s w e k n o w, P = \sqrt{2 m K E}$
$K E_{1} = K E_{2} b u t m_{1} < m_{2} (s a m e k i n e t i c e n e r g y b u t o n e b o d y i s l i g h t e r t h a n o t h e r)$
$\frac{P_{1}}{P_{2}} = \frac{m_{1}}{m_{2}}; a s m_{1} < m_{2}; h e a v i e r b o d y w i l l h a v e g r e a t e r m o m e n t u m .$

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A light and heavy body have equal momentum. Which one has greater kinetic energy?

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