Question

So..should I post another fun question of mechanics?

Answer 1

this one is again of gravitation..The gravitation force is a conservative force...i.e..the net energy gained by a body is equal to the net displacement in the feild, not on the path taken by it...so by principle...if a body returns to the same position..its energy gained or lost is 0...so lets see..if u were asked to jump...and u did...u work against gravity..however you are returning to the same position..so no loss in energy..why do you feel fatigue then..? answer from a physics point of view

Answer 2

The reason for fatigue is due to loss of energy and this loss of energy is due to the work done against force of gravity.

Answer 3

When you are falling down..in a jump u do "fall down", u do the same amount of negative work as much as you do while rising up, my friend