Absolute potential energy of a body at the surface of the earth is:
Correct answer: C. GmM/R
- A. Gm/R
- B. Gm/R²
- C. GmM/R
- D. GmM/R²
Explanation
Gravitational potential energy of mass m at distance R from Earth's center is U = −GMm/R; the magnitude uses GMm/R, so option C (G M m / R) correctly identifies the expression (constants as given).
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Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
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