Question

A bomb of mass 20 kg at rest explodes into two pieces of
8 kg and 12 kg. The velocity of 8 kg mass is 5 m/s. The
kinetic energy of other mass is​

Answer 1

take v 5cm and mass 8 kg

Mark me brainlist.......

Answer 2

Answer:

66J

Explanation:

The masses of smaller and larger pieces be 8kg,12kg respectively.

By conservation of momentum

0=8×5+12×v

⇒V=−40/12m/s

Here minus sign indicates that it is in opposite direction.

Kinetic energy of larger fragment = 1/2×12×(-40×-40)/144= 66J