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9. | 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 | |
Answer: Option C | |
Explanation: | |
Motion without slipping implies pure rolling. During pure rolling work done by friction force is zero. |
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