Question

only revalent answers​

Answer 1

(please refer to the given attachment)

Since the meter scale is uniform

∴ Its mass per unit length is same and its wt. W acts at 50cm mark.

∴ W × (60 – 50) = M(90 – 60)

10W = 30M

W = $\large \frac{30M}{10}$ = 3M

Weight of scale is greater than M.

Reason : Distance of weight of metre scale from fulcrum F which acts at 50cm mark (10cm) is less than that of the mass M (30 cm).

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