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प्रश्न
A jack screw is provided with a long arm. Explain why?
Explain the following:
A jack screw is provided with long arm.
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उत्तर
A force is supplied at a position on the body where the distance from the axis is maximum in order to maximise the screw jack's turning effect. In order to give the screw jack the highest torque possible given the supplied force. The formula for the turning effect of the body is moment of force (torque) = force applied × perpendicular distance of force from the axis of rotation.
As a result, the jack screw may apply more force the longer its arm.
संबंधित प्रश्न
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- Which force has the greatest moment about O? Give a reason.
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(a) Clockwise
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State whether the moment of force is a scalar or vector quantity?
State when the moment of force is positive and when it is negative.
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- If this rod is cut at the center, C, then compare the weight of AC to the weight of BC. (Use >, < or =)
- Give a reason for your answer in (a).
