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A horizontal rod AB of weight of 1 kg ca...

A horizontal rod AB of weight of 1 kg can rotate about a fixed axle at a hinge A. The end B is pulled vertically upwards by a force of 0.15 kg. wt. A weight 0.5 kg is suspended to a point 20 cm, from the end B. If the system is in equilibrium, the length of AB is .........

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25 cm
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