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A particle of mass 5kg strikes a body of...

A particle of mass 5kg strikes a body of mass 2.5 kg atrest elastically. The 2.5 kg mass after collision moves with a kinetic energy of 5J. The kinetic energy of 5 kg mass before collision is

A

0.62 J

B

5.625 J

C

7.68J

D

4.20 J

Text Solution

Verified by Experts

The correct Answer is:
B
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