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A pair of scissors is used to cut a piece of a cloth by keeping it at a distance of 8.0 cm from its rivet and applying an effort of 10 kgf by fingers at a distance of 2.0 cm from the rivet.(a) Find : (i) the mechanical advantage of scissors, and (ii) the load offered by the cloth.(b) How does the pair of scissors act : as a force multiplier or as a speed multiplier ? |
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Answer» A pair of scissors is used to cut a piece of a cloth by keeping it at a distance of 8.0 cm from its rivet and applying an effort of 10 kgf by fingers at a distance of 2.0 cm from the rivet. (a) Find : (i) the mechanical advantage of scissors, and (ii) the load offered by the cloth. (b) How does the pair of scissors act : as a force multiplier or as a speed multiplier ? |
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