Question

7. Two opposite and parallel forces each of magnitude 3 N act as a couple at the two ends of uniform rod of lengti
freely pivoted at its centre. Calculate total moment of the couple.
Ans.3Nm
8. A uniform metre rule can be balanced at 70 cm mark when a mass of 0.05 kg is hung from 94 cm mark
diagram of this arrangement and find the mass of the metre rule.
Ans.0.06kg​

Answer 1

Explanation:

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