Question

it is easier to lift the heavy stone under water than in air. Explain

Answer 1

It is easier to lift up the heavy stone in water than in air because in water there is another force which acts on the stone by applying an upthrust on the stone making it easier to lift whereas no such force works in air.

Answer 2

Answer:

It is easier to lift a heavy stone under water than in air because when a body immersed in a fluid, it shows an apparentite loss of weight , and which is equal to the weight of the fluid displaced by the body . So , a heavy stone under water ultimately reduces the true weight of the stone