Question

A jack screw is provided with a long arm. Explain why?
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Answer 1

A jack screw has a long arm so that less effort is required to rotate it to raise or lower the jack, which is used to lift a heavy load like a vehicle.

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Answer 2

A jack, screw jack or jackscrew is a mechanical device used as a lifting device to lift heavy loads or to apply great force. A jack screw is provided with a long arm in order to have the effort less than the load. Therefore, the long arm of the jack screw, the more force it can apply.

Explanation:

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