Explain why the total mechanical energy of a system consisting only of a block, Earth

PHYSICS · Subjective · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

Explain why the total mechanical energy of a system consisting only of a block, Earth, and an ideal spring remains constant while the block slides down a frictionless track and compresses the spring.

Related theory

Potential Energy
Law of Conservation of Energy
Conservation of Energy
Work, energy and power
Conservation of mechanical energy
Conservation of energy; conservative and non-conservative forces

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