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प्रश्न
Name a machine to obtain gain in speed ?
उत्तर
To obtain gain in speed: when a pair of scissors is used to cut the cloth, its blades move longer on cloth while its handles move a little.
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संबंधित प्रश्न
Draw a diagram of a lever which is always used as a force multiplier. How is the effort arm related to the load arm in such a lever?
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The following belong to which class of lever?
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(ii) the effort applied at the other end.
