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Question
There is no gain in mechanical advantage in the case of a single fixed pulley. Explain, why the pulley is then used?
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Solution
It is used only to change the direction of effort to a more convenient direction and to use one’s own weight for the effort.
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| S. No | Types of Simple Machine | Example |
| 1. | Pulley | |
| 2. | Wheel and axle | |
| 3. | Wedge | |
| 4. | Inclined plan | |
| 5. | Lever | |
| 6. | Screw |
