Physics - W.E.P. Question with Solution | TestHub

The correct option is (A). Kinetic Energy $\mathrm{K}$ and momentum $p$ are related as: $\mathrm{K}=\frac{{\mathrm{p}}^2}{2\mathrm{m}}$ Therefore, $P=\sqrt{2Km}$ The ratio of momentum for $4\mathrm{kg}$ mass and $1\mathrm{kg}$ mass moving with equal kinetic energy $\mathrm{K}$ is $\frac{{\mathrm{p}}_{4\mathrm{kg}}}{{\mathrm{p}}_{1\mathrm{kg}}}=\sqrt{\frac{2\mathrm{K}(4\mathrm{m})}{2\mathrm{K}(\mathrm{m})}}=\frac{2}{1}$