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Solution: A uniform bar with mass 50 kg and length 4.0 m is attached t...

Question

A uniform bar with mass 50 kg and length 4.0 m is attached to a wall by a frictionless hinge. The bar is held in a horizontal position by a light rope that is attached at the end of the bar. The other end of the rope is attached to the wall. The rope makes an angle of 30° with the wall. What is the magnitude of the resultant force that the hinge exerts on the bar?