An object of mass m is released from rest from point X which is at a height h above Y and slides down a frictionless slope. The object passes point Y with a velocity u as shown in the given diagram.
A second object of mass 0.5m is released from rest from point Z which is at a height 2h above Y. The velocity with which the second object passes point Y in terms of u is
A2u
B√2u
Cu
D0.5u