What is the kinetic energy in Joules of a bullet of mass $2 \, g$ moving with a velocity of $500 \, m/s$ (in $, J$)?

Two bodies of masses $m_1$ and $m_2$ have equal kinetic energies. If $p_1$ and $p_2$ are their respective momenta,then the ratio $p_1:p_2$ is equal to

Two bodies of masses $1 \ g$ and $4 \ g$ are moving with the same kinetic energy. What is the ratio of their linear momenta?

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

If the kinetic energy of a body changes by $20 \%$, then its momentum would change by:

If the momentum of an object is increased by $100\ \%$,then its kinetic energy increases by ......... $(\%)$ percent.