The kinetic energy of a body of mass $2 \ kg$ and momentum of $2 \ Ns$ is ............. $J$.

Two bodies with kinetic energies in the ratio of $4 : 1$ are moving with equal linear momentum. The ratio of their masses is

The graph between kinetic energy $E$ and velocity $v$ is:

If the momentum of a body is increased by $100\%$,then the percentage increase in the kinetic energy is ............ $\%$

The kinetic energy of a man is half that of a boy whose mass is half that of the man. If the man increases his speed by $1 \ m/s$,his kinetic energy becomes equal to that of the boy. What is the initial speed of the man?

The kinetic energy acquired by a mass $m$ in travelling a certain distance $d$ starting from rest under the action of a constant force is directly proportional to