##### Pulley physical science lab 2

 Physics Tutor: None Selected Time limit: 1 Day

what value does counting the number of support strings give you?

what is the purpose of a fixed pulley?

how does the pulley help us do work?

May 15th, 2015

what value does counting the number of support strings give you?

• Please rewrite the question , question is not clear thanks

what is the purpose of a fixed pulley?

• The purpose of a fixed pulley is to change the direction of the force. The fixed pulley does not have a multiplicative property of force, that means that the force does not necessarily increase. The usefulness is related to the desired direction of movement.

How does the pulley help us do work?

• It helps reverse the direction of an individualâ€™s lifting force. As a user pulls a rope down, the pulley lifts the weight up. When two ropes and wheels are used, a pulley reduces the effort needed to lift a weight by half.

May 15th, 2015

what usefulness does counting the number of support strings in a pulley give you?

May 15th, 2015

In a simple word the higher the spring count, the better the support.

May 15th, 2015

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May 15th, 2015
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May 15th, 2015
Dec 10th, 2016
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