The force required by a man to move his limbs immersed in water is smaller than the force for the some movement in air Why?

The force required by a man to move his limbs immersed in water is sma

1.	The force required by a man to move his limbs immersed in water is smaller than the force for the some movement in air Why?
Answer» Solution :By ARCHIMEDES principle, there is an APPARENT loss of WEIGHT of a body when it is under in any liquid and it is equal to weight of liquid displaced. Here, water exerts uphrust on his limbs and HENCE less force is required to move his hands.