A fixed pulley is used to change the direction of a force and does not multiply the force applied. As such, it has a mechanical advantage of one. The benefit of a fixed pulley is that it can allow the force to be applied at a more convenient angle, for example, pulling downward or horizontally to lift an object instead of upward.
A fixed pulley is useful for which of the following?
multiplying the input distance |
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multiplying the input force |
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changing the direction of the output force |
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changing the direction of the input force |