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प्रश्न
The diagram shows a uniform metre rule weighing 100gf, pivoted at its centre O. Two weights 150gf and 250gf hang from the point A and B respectively of the metre rule such that OA = 40 cm and OB = 20 cm. Calculate :
the total clockwise moment about O
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उत्तर
Total clockwise moment about O,
=250 gf x 20 cm= 5000 gf cm
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