Question

If the kinetic energy of the body is decreased by 300%,it momentum will decrease by______%​

Answer 1

Kinetic energy k=

2m

P

2

where, P is momentum and m is mass.

k

1

=k,k

2

=k+300 % of k=4k

⇒

P

1

P

2

=

k

1

k

2

=

k

4k

=2

⇒P

2

=P

1

+100% pf P

1

Hence, momentum will increase by 100%

Answer 2

Answer:

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