A bomb of mass 30kg at rest explodes int...

A bomb of mass 30kg at rest explodes into two pieces of masses 18 kg and 12 kg . The velocity of 18 kg mass is `6ms^(-1)`. The kinetic energy of the other mass is

A

256 J

B

486 J

C

524 J

D

342 J

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The correct Answer is:

B

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