Question

A 2 kg body and a 4 kg body have equal momentum. If the kinetic energy of the 4 kg body is 12 J then kinetic energy of the 2 kg body is,

Answer 1

Explanation:

If m be the mass of the body and p be the momentum of the body, the kinetic energy of the body is

KE=

2m

p

2

=

2(2)

4

2

=4J