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  3. 3 the gate ab shown in the figure is rectangular...

Question: 3 the gate ab shown in the figure is rectangular...

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3. The gate AB shown in the figure is rectangular with a length L and width w into the page. The gate has a frictionless hinge at point A and it is held against a stop at point B by a weight mg; the pulley redirecting the weights cable is also frictionless. Neglecting the weight of the gate, derive an expression for minimum mass m of the weight that keeps the gate in place for water height h before the gate. mg gate Patm Patm water, h density p

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