A body is projected vertically up with velocity u from the ground in the presence of constant air resistance R of it reaches the ground with a velocity 'V' then time of descent

A body projected vertically with a velocity 'u' from ground. Its velocity

A body is projected vertically upwards from the ground. On reaching the greatest height

A body is projected vertically upwards with a velocity u from the top of a tower. Time taken by it to reach the ground is n times, then the time taken by it to reach the highest point in its path. Height of the tower is

A stone projected vertically up with velocity v from the top of a tower reaches the ground with velocity 2v. The height of the tower is

A stone projected vertically up with velocity v from the top of a tower reaches the ground with velocity 2 v The height of the tower