Question

3. How does kinetic energy of a body change if
i. its mass is doubled, ii. velocity is doubled?​

Answer 1

Explanation:

your answer is-

ii. velocity is doubled

Answer 2

Hii Sohamsengupta

HERE IS YOUR ANSWER

HOPE IT WILL HELP YOU

Kinetic energy of a body of given mass, is directly proportiional to its square of its velocity. When momentum is doubled, mass remaining constant, this means velcity is doubled. Hence, kinetic energy becomes 22=4 times i.e. say from 100 units to 400 units.