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Why is a Jack Screw Provided with a Long Arm? - Physics

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Why is a jack screw provided with a long arm?

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Solution

A jack screw is provided with a long arm in order to have the effortless than the load. According to the principle of moments, load x load arm = effort x effort arm. So, if the load arm is more, then the effort will be more than the load.

Concept: Definition of Work
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