When a body is dropped on the ground from some height its P.E is converted into K.E but when it strikes the ground and it stops, what happens to the K.E

A cylinder bucket of diameter 28 cm and height 20 cm was full of sand. When the sand in the bucket was poured on the ground, the sand got converted into a shape of a cone. If the height of the cone was 14 cm, what was the base area of the cone?

A stone is thrown vertically upwards from the ground with a velocity 15 m/s. At the same instant a ball is dropped from a point directly above the stone from a height of 30 m. At what height from the ground will the stone and the ball meet and after how much time? (Use g= 10 m//s^2 for ease of calculation).

When an electron in hydrogen atom is raised from the ground state to an excited state its

A ball is dropped vertically from a height d above the ground. It hits the ground and bounces up vertically to a height d/2 . Neglecting subsequent motion and irresistance, its velocity v varies with the height h above the ground as

A man drops a 20 kg object from the top of a 10m high building . What will be the velocity of the object when it just hits the ground?

When a body is projected vertically up from the ground, its velocity is reduced to (1/3)^rd of its initial value at height y above the ground. The maximum height reached by the body is

When a body is projected vertically up from the ground, its velocity is reduced to (frac(1)(3))^(rd) of its initial value at height y above the ground . The maximum height reached by the body is

From the top of a tower of height 'H', body is thrown vertically upwards with a speed 'u'. Time taken by the body to reach the ground is '3' times the time taken by it to reach the highest point in its path. Then, the speed u is