Question

A freely falling object eventually stops on reaching the ground. What happenes to its kinetic energy?

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Answer

When a freely falling object eventually stops upon reaching the ground, its kinetic energy is transformed into other forms of energy, primarily heat and sound. This transformation occurs due to the impact with the ground, where the force of the impact causes vibrations (sound) and friction, which generates heat. Additionally, some of the energy might be used in deforming the object or the ground, though this depends on the nature of both. Therefore, the kinetic energy of the object is not lost but is converted into other energy forms, adhering to the law of conservation of energy.


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