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NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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Statement-I: The work done by all forces on a system equals to the change in kinetic energy of that system. This statement is true even if non-conservative forces act on the system.
Statement-II: The total work done by internal forces may be positive.

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Correct option: A

Statement-I

\&

II are true.

Statement-I & II are true. The work done by all forces equals the change in kinetic energy, and internal forces can do positive work.

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