A bomb at rest explodes. The centre of mass

(A): When a shell at rest explodes, the centre of mass fragments Continues at rest (R) : In explosion the linear momentum of the system does not remains conserved.

A bomb at rest explodes. The total momentum of all its fragments is

A bomb at rest explodes into two parts of masses m_(1) and m_(2) . If the momentums of the two parts be P_(1) and P_(2) , then their kinetic energies will be in the ratio of:

A bomb at rest explodes into two parts of masses m_(1) and m_(2) . If the momentums of the two parts be P_(1) and P_(2) , then their kinetic energies will be in the ratio of:

A bomb at rest explodes into 3 parts of same mass. The momentum of two parts is -3phat(i)and2phat(j) . Respectively. The magnitude of momentum f the third part is

A bomb at rest explodes into 3 parts of same mass. The momentum of two parts is -3phat(i)and2phat(j) . Respectively. The magnitude of momentum f the third part is