Question

A bomb of mass 16kg at rest explodes into two pieces of masses 4 kg and 12 kg. The velolcity 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

Ans is 288J

Dude, just use linear conservation of momentum to find the velocity of 4kg mass

And just use Kinetic energy formula with m=4kg and v=12m/s