A boy opens a nut by applying a force of 200 N using a wrench of length 300 cm. If he wants to be the length of wrench?
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Given that we are applying a force of 5 N and a nut is opened by a wrench of length 10cm ( is also equal to 0.1 m). Moment of force is given by formula r×F. Hence 0.1×5=0.5N−m. Hence moment of force is 0.5Nm.
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200 n force use in 300cm lenth
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