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Two bodies of masses 3 kg and 2 kg colli...

Two bodies of masses 3 kg and 2 kg collide head-on. Their relative velocities before and after collision are 15 m/s and 5 m/s respectively. The loss of kinetic energy of the system is

A

120 J

B

100 J

C

80 J

D

240 J

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The correct Answer is:
A
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