Question

Two bodies of masses 2m and m have thier kinetic energy 8:1 then the ratio of thier masses are

Answer 1

Explanation:

The relation between kinetic energy (K) and momentum (p) is given by, K=

2m

p

2

where m be the mass of the body

So, p=

2mK

Hence,

p

2

p

1

=

2mK

2

2(2m)K

1

=

2(8/1)

=

1

4

Answer 2

Answer:

your answer is in attachment