A bomb of mass 9 kg explodes into two pieces of masses 3 kg and 6 kg . The velocity of mass 3 kg is 16 m s - 1 . The kinetic energy of mass 6 kg in joule is

Question

A bomb of mass 9 kg explodes into two pieces of masses 3 kg and 6 kg . The velocity of mass 3 kg is 16 m s - 1 . The kinetic energy of mass 6 kg in joule is, 96, 384, 192, 768

MARKS App · Accepted Answer

The momentum of 6 kg piece p 2 = momentum of 3 kg piece p 1 = m 1 v 1 = 3 × 16 = 48 kg m s - 1 The kinetic energy of 6 kg piece K 2 = p 2 2 2 m 2 = 48 × 48 2 ×6 = 192 J

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