A moving body need not have:
Correct answer: C. Potential energy
- A. Velocity
- B. Momentum
- C. Potential energy
- D. Kinetic energy
Explanation
A moving body need not have "c) Potential energy."A moving body may have velocity and momentum due to its motion, but it does not necessarily have potential energy unless it is in a position or configuration where potential energy is relevant (e.g., elevated above the ground). The kinetic energy, on the other hand, is always associated with the motion of the body.
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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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