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A particle moving with kinetic energy=3 ...

A particle moving with kinetic energy=3 J makes an elastic head-on collision with a stationary particle which has twice its mass. During the impact:

A

The minimum kinetic energy of the system is 1 J

B

The maximum elastic potential energy of the system is 2J

C

Momentum and total energy are conserved atevery instant

D

The ratio of kinetic energy to potential energy of the system first decreases and' then increases.

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A, B, C, D
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