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July 1, 2015

Homework Help: physics

Posted by Luke on Thursday, November 25, 2010 at 2:12am.

A uniform metal rod of mass 100 kg and L (2.5m) is suspended from the side of the building. On the far end of a mass of 100 kg is hung by a rope, (distance L from a building). The rod is connected to the building on the left end by a pivot, (and a force F is exerted on the rod by the pivot). To hold this up a strong cable is attached a distance L/4 from the pivot (and has tension T on it). The system is in equilibrium. a) using the rotational from of the condition for equilibrium, find the tension T. b) Using the other form of the condition for equalibrium, find the force the pivot exerts on the rod F.

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