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The minimum force required to start pushing a body up a rough (frictional coefficient ) inclined plane is while the minimum force needed to prevent it from sliding down is . If the inclined plane makes an angle from the horizontal such that , then the ratio is
(a) 4
(b) 1
(c) 2
(d) 3
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[as body just in position to move up, friction force downward]
) [as body just in position to slide down, friction upward]
) [as body just in position to slide down, friction upward]
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| Question Text | The minimum force required to start pushing a body up a rough (frictional coefficient ) inclined plane is while the minimum force needed to prevent it from sliding down is . If the inclined plane makes an angle from the horizontal such that , then the ratio is (a) 4 (b) 1 (c) 2 (d) 3 |
| Updated On | Sep 22, 2022 |
| Topic | Laws of motion |
| Subject | Physics |
| Class | Class 11 |
| Answer Type | Text solution:1 Video solution: 3 |
| Upvotes | 323 |
| Avg. Video Duration | 11 min |
