If a man of mass `M` jumps to the ground from a height `h` and centre of mass moves a distance `x` in time taken by him to hit the ground, show that the average force acting on him is `Mgh//x`.

If a man of ,mass M jumps to the ground from a height h and his centre of mass moves a distance x in the time taken by him to 'hit' the ground the average force acting on him (assuming his retardation to be constant during his impact with the ground) is :

If a man of ,mass M jumps to the ground from a height h and his centre of mass noves a distance x in the time taken by him to 'hit' the ground the average force acting on him (assuming his retardation to be constant during his impact with the ground) is :

A ball is thrown upwards with a speed u from a height h above the ground.The time taken by the ball to hit the ground is

A ball is thrown upwards with a speed u from a height h above the ground.The time taken by the ball to hit the ground is

A stone is released from the top of a tower of height 1960 m. calculate the time taken by the stone to hit the ground.

Body 1 of mass M is dropped from a height of 1 m and body 2 of mass 3 M is dropped from a height of 9 m. Ratio of time taken by bodies 1 and 2 to reach the ground is

A ball is thrown vertically upward with a speed v from a height h above the ground . The time taken for the ball to hit the ground is

Body A of mass M is dropped from a height of 1 m and body. B of mass 3M is dropped from a height of 9 m. The ratio of time taken by the bodies 1 and 2 to reach the ground is