When the ball is released freely from a height, its potential energy is converted into kinetic energy as it falls. By the principle of conservation of mechanical energy (assuming no air resistance), the potential energy at the initial height is equal to the kinetic energy just before hitting the ground.
There is a ball of mass 320 g. It has 625 J potential energy when released freely from a height. The speed with which it will hit the ground is
Asked in UPSC NDA 2 2024 · Topic: Motion under Gravity (Conservation of mechanical energy in motion under gravity)
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