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Home» class 9»Science» Chapter 10: Work and Energy

The potential energy of a freely falling object decreases prog... - Science

Question

The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

Answer

No, this does not violate the law of conservation of energy.

Reason:
As the potential energy decreases, the kinetic energy of the object increases by an equal amount because its velocity increases as it falls. The total mechanical energy (Sum of Potential Energy + Kinetic Energy) remains constant at every point during the fall.