Question

It is easier to lift a stone underwater .explain

Answer 1

it is easier to lift heavy stone in water because the density of stone is less than that of water, so when we try to lift it underwater it ,itself try to move up due to lower density and hence we have no need to apply much effort.

Answer 2

it is easier to lift a stone underwater because of the buyoancy of water .water applies a force equal to the weight of the body so it becomes easies to lift the stone