An object of weight 40 N is released from a height of 10 m. Its kinetic energy just before it hits the ground is:
A2kg ball is dropped from a height of 10m. Find its kinetic energy just before hitting the ground. [Take g =10ms-2.]
A man drops a 10 kg rock from the top of a 5m ladder.what is its speed just before it hits the ground?what is its kinetic energy when it just reaches the ground?