Question

The force required by a man to move his legs immersed in water is less than the force for the same movement in air

Answer 1

Explanation:

there is upthrust when leg is immersed in water which is greater than in the air. this makes the weight of limbs less

Answer 2

Answer:

Explanation:

the density of water is much more than that of air therefore the upthrust on the limbs of a person in water is much greater than that in air as a result the net weight of the limbs in water is much less than in air hence the force required by a person to move is less in water than that in air