Question

A body is falling from a height h. After it has fallen a height h/2, it will possess

The weight of a person on a planet A is about half that on the earth. He can jump upto 0.4 m height on the surface of the earth. How high he can jump on the planet A?

A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? (g = 10 m s⁻²)

Which type of energy conversion is found in a microphone?

A ball dropped from a height of 20 m loses 40% of its energy after impact on the ground. To what height will the ball rise after the impact?