If momentum of a moving object is doubled then its kinetic energy will be
Correct answer: C. Four times
- A. Doubled
- B. Halved
- C. Four times
- D. Same
Explanation
KE = p²/(2m); if p doubles, KE increases by factor 2² = 4. Hence KE becomes four times, option C.
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About Work and Energy
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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