An impulse I given to a body changes its velocity from `v` to`3v` .The increase in kinetic energy of the body is given by ?

An impulse l given to a body change its velocity from v_(1) to v_(2) .The increase in the kinetic energy of the body is given by

If kinetic energy of a body is increasing then.

K the angular velocity of a body increases by 40% , its kinetic energy of rotation increases by

If the force acting on a body is inversely proportional to its speed, the kinetic energy of the body is

The kinetic energy of a body is increased most by doubling its

If the angular velocity of a body increases by 20% then its kinetic energy of rotation will increase by