A man standing on the edge of a cliff throws a stone straight up with initial speed (u) and then throws another stone straight down with same initial speed and from the same position. Find the ratio of the speeds. The stones would have attained when they hit ground at the base of the cliff.

A man standing on the edge of a cliff throws a stone straight up with initial speed (u) and then throws another stone straight down with same initial speed and from the same position. Find the relation of the speeds. The stones would have attained when they hit ground at the base of the cliff.

Two stones are thrown from the top of a tower, one straight down with an initial speed u and the second straight up with the same speed u. When the two stones hit the ground they will have speeds in the ratio.

From the top of a tower two stones, whose masses are in the ratio 1 : 2 are thrown one straight up with an initial speed u and the second straight down with the same speed u . Then, neglecting air resistance

A woman stands on the edge of a cliff and throws a stone vertically downward with an initial speed of 10 m/s. The instant before the stone hits the ground below, it has 450 J of kinetic energy. If she were to throw the stone horizontally outward from the cliff with the same initial speed of 10 m/s, how much kinetic energy would it have just before it hits the ground ?

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 person standing on the edge of a well throws a stone vertically upwards with an initial velocity 5ms^(-1) . The stone gone up, comes down and falls in the well making a sound. If the person hears the sound 3 seconds after throwing the the depth of water (neglect time travel for the sound and take g=10ms^(-2) )

From the top of a 490 m high cliff, a boy throws a stone horizontally with a initial speed of 15 ms^(-1) . What is the time taken by the stone to reach the ground.

A man standing on the edge of the terrace of a high rise building throws a stone, vertically up with at speed of 20 m//s . Two seconds later, an identical stone is thrown vertically downwards with the same speed of 20 m ,. Then