One stone is projected horizontally from a `20 m` high cliff with an initial speed of `10 ms^(-1)`. A second stone is simultaneously dropped from that cliff. Which of the following is true?

A stone dropped from a cliff hits the ground in 4 sec. Height of the cliff is

A stone dropped from a cliff hits the ground in 4 sec. Height of the cliff is

A ball is projected downward from the top of a cliff of height h with an initial speed v.Another ball is simultaneously projected vertically up from the bottommost of the cliff with the same speed.When do they meet?

A ball is projected downward from the top of a cliff of height h with an initial speed v.Another ball is simultaneously projected vertically up from the bottommost of the cliff with the same speed.When do they meet?

Two stones A and B are projected simultaneously from the top of a 100 - m high tower. Stone B is projected horizontally with speed 10 ms^-1 , and stone A is droppd from the tower. Find out the following : (a) Time of flight of the two stone (b) Distance between two stones after 3 s (c ) Angle of strike with ground (d) Horizontal range of particle B .