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))`

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

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