A stone is dropped from a height of 10 m on an unknown planet having `g=20m//s^2`. calculate the speed of the stone when it hits the surface of the planet.

A cricket ball is dropped from a height of 20 metres. (a) Calculate the speed of the ball when it hits the ground. (b) Calculate the time it takes to fall though this height (g=10 m//s^(2))

An object is propelled vertically to a maximum height of 4R from the surface of a planet of radius R and mass M. The speed of object when it returns to the surface of the planet is -

A stone is released from the top of a tower of height 1960 m. calculate the time taken by the stone to hit the ground.

A stone is dropped from a height of 20 m . (i) How long will it take to reach the ground? (ii ) What will be its speed when it hits the ground? (g= 10 m//s^2)

A stone is dropped from the top of a tower 500 m high into a pond of water at the base of the tower. When is the splash heard at the top ? Given, g = 10 m//s^2 and speed of sound = 340 m//s .

A lift whose cage is 3 m high is moving up with an acceleration of 2m//s^(2) . A piece of stone is dropped from the top of the cage of the lift when its velocity is 8m/s. if g=10m//s^(2) , then the stone will reach the floor of the lift after

A stone is dropped from a height of 45 m on a horizontal level ground. There is horizontal wind blowing due to which horizontal acceleration of the stone becomes 10m//s^(2) . (Take g=10m//s^(2)) . The time taken (t) by stone to reach the ground and the net horizontal displacement (x) of the stone form the time it is dropped an till it reaches the ground are respectively