A ball is thrown vertically upwards from the ground. Work done by air resistance during its time of flight is

A ball is thrown vertically upwards from the ground. If T_1 and T_2 are the respective time taken in going up and coming down, and the air resistance is not ignored, then

A ball is thrown vertically upwards from the ground. If T_1 and T_2 are the respective time taken in going up and coming down, and the air resistance is not ignored, then

A ball is thrown vertically upwards from the ground. It crosses a point at the height of 25 m twice at an interval of 4 secs. The ball was thrown with the velocity of

A ball is thrown vertically upwards from the ground It crosses a point at the height of 25 m twice at an interval of 4 secs . The ball was thrown with the velocity of.

If a ball is thrown vertically upwards with speed u , the distance covered during the last t second of its ascent is