Question

A bomb of mass 16 kg at rest explodes into two pieces of masses 4 kg and 12 kg. The velocity of the 12 kg mass is 4ms^-1. The kinetic energy of the other mass is

(a) 144 J

(b) 288 J

(c) 192 J

(d) 96 J

Answer 1

Correct option (b) 288 J
Explanation:

Here, momentum of the system is remaining conserved as no external force is acting on the bomb (system).