Question

A body of mass 9kg explodes into two pieces of mass 3kg and 6kg the velocity of mass 3kg is 16meter per second kinetic energy of mass 6kg is?? ​

Answer 1

Answer:

Answer

Correct option is

D

192 J

Given mass of the bomb=M=9㎏

Initial value of bomb=0㎧

Mass of smaller fragment=3㎏→m

1

Mass of bigger fragment=6㎏→m

2

P(just after explosion)=P (just before explosion)

m

1

×11+m

2

×v=M×0

v=−8㎧

Kinetic energy of mass 6㎏=

2

1

m

2

v

2

=

2

1

×6×64

=192J