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A ball moves in a frictionless inclined table without slipping. The work done by the table surface on the ball is ___________

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A ball moves in a frictionless inclined table without slipping. The work done by the table surface on the ball is ___________

(a) Positive

(b) Negative

(c) Zero

(d) Infinity

I have been asked this question during an online exam.

Question is from Moment of Inertia in section System of Particles and Rotational Motion of Engineering Physics I

1 Answer

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Best answer
Right choice is (c) Zero

The explanation is: Motion without slipping implies pure rolling. During pure rolling work done by friction force is zero.

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