A stone thrown upward with a speed u from the top of a tower reaches the ground with a velocity 4u. The height of the tower is

A ball is thrown upwards with speed v from the top of a tower and it reaches the ground with speed 3v .The height of the tower is

A ball is thrown upward with speed 10 m/s from the top to the tower reaches the ground with a speed 20 m/s. The height of the tower is [Take g=10m//s^(2) ]

A stone is thrown vertically upwards with an initial speed u from the top of a tower, reaches the ground with a speed 3 u . The height of the tower is :

A stone dropped from the top of a tower reaches the ground in 3 s. The height of the tower is

A ball is thrown upwards with speed ‘v’ from the top of a tower and it reaches the ground with a speed 3v, then 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 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

A stone dropped from the top of the tower touches the ground in 4 sec. The height of the tower is about

A stone released with zero velocity from the top of a water, reaches the ground in 4s. The height of the tower is (g = 10 m//s^(2))