A mechanc unsrew a nut by applying a for...

A mechanc unsrew a nut by applying a force of 140 N with a spanner of length 40 cm . What should be the length of the spanner if a force of 40 N is applied to unsrew the same nut ?

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A mechanc unsrew a nut by applying a force of 140 N with a spanner of length 40 cm . What should be the length of the spanner if a force of 40 N is applied to unsrew the same nut ?

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