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A pair of tweezers of length 15 cm is used to lift a ball of cotton weighing 1g. if the effort is applied midway between the ends of the tweezers, what effort (in kgf) will have to be applied to lift the ball of cotton?brainlliest answer |
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Answer» Load=1.5kgf Load arm-20cm Effort arm=15cm Effort 20*1.5/15-2.0kgf The fulcrum in tongs is the joint END of the ARNM |
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