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| Q. |
Which of the following kinetic friction is smaller? |
| A. | limiting friction |
| B. | static friction |
| C. | rolling friction |
| D. | sliding friction |
| Answer» C. rolling friction | |
| Explanation: the force which comes into play when a body rolls over the surface of another body is called rolling friction. for the same magnitude of a normal reaction, rolling friction is always greater than the sliding friction. | |
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