Q. The law of conservation of mechanical energy is valid

(A) Irrespective of the nature of force field
(B) Only in gravitational field
(C) Only if the total work done by the particle in moving around in a closed trajectory is zero
(D) Only if the force is tangential to the trajectory

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✅ Correct Answer: (C) Only if the total work done by the particle in moving around in a closed trajectory is zero

Published by Ranjeet ⭐ 34.60K Points at 17-Feb-2025 06:50 pm in Applied Mechanics

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