A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms'.The kinetic energy of the other mass is
The linear momentum of the exploding part will remain conserved.
Applying coservation of linear momentum,
m1 u1 =m2 u2
Here, m1 = 18kg, m2 = 12kg
u1 = 6ms-1, u2 = ?
Thus kinetic energy of 12 kg mass