If two stones are thrown upward with their velocities u1 and u2 respectively, prove that the heights reached by them is in the ratio u1^2 :u2^2?
Two bodies, A and B, having masses m1 and m2, have equal K.E. If PA and PB are their respective momenta, how can I prove that the ratio of momenta is equal to the square root of the ratio of their respective masses?