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प्रश्न
Give an example of the following uses of a machine:
to change the direction of force
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उत्तर
A pulley is used to change the direction of application of force.
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संबंधित प्रश्न
Moment of force =............... × distance of force from the point of turning.
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- Total moment of the two forces about O.
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electrostatic force
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