$A$ force of $10 \ N$ is applied on an object of mass $2 \ kg$ over a distance of $1 \ m$. What will be the kinetic energy gained by the object in $J$?

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

Two masses of $1 \,g$ and $4 \,g$ are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is

When the momentum of a body increases by $100\%$,its $KE$ increases by .............. $\%$

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?

Two bodies with masses $M_1$ and $M_2$ have equal kinetic energies. If $p_1$ and $p_2$ are their respective momenta,then $p_1/p_2$ is equal to