A ball is thrown straight upward with a speed v from a point h meter above the ground. The time taken for the ball to strike the ground is

A ball is thrown stright upwards with a speed v from a point h meters above the ground .Find the time taken for the ball to strike the ground.

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

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 ball is thrown horizontally with a speed of 20 m//s from the top of a tower of height 100m Time taken by the ball to strike the ground is