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प्रश्न
The diagram in the figure shows a uniform metre rule weighing 100 gf, pivoted as its centre O. two weight 150 gf and 250 gf hang from the point A and B respectively of the metre rule such that OA = 40 cm and OB = 20 cm . Calculate
the total anticlockwise moment about o.
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उत्तर
The total anticlockwise moment about O
= 150 gf x 40 cm = 6000 gf cm
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