Physics Practice Problems Beam / Shelf Against a Wall Practice Problems Solution: A uniform bar (I = 1/3 ML2 for an axis at one end)...

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Solution: A uniform bar (I = 1/3 ML2 for an axis at one end) has mass M = 5.00 kg and length L = 6.00 m. The lower end of the bar is attached to the wall by a frictionless hinge. The bar is held stationary at an angle of 60° above the horizontal by a cable that runs from the upper end of the bar to the wall. The cable makes an angle of 37° with the bar. What is the tension in the cable?

Problem

A uniform bar (I = 1/3 MLfor an axis at one end) has mass M = 5.00 kg and length L = 6.00 m. The lower end of the bar is attached to the wall by a frictionless hinge. The bar is held stationary at an angle of 60° above the horizontal by a cable that runs from the upper end of the bar to the wall. The cable makes an angle of 37° with the bar. What is the tension in the cable?