Can someone please help me with this physics problem? (Rotational Equilibrium)?

Posted on 2016-04-20 18:19:00 in Physics by MOHA

A) A house painter is standing on a uniform, horizontal platform that is held in equilibrium by two cables attached to supports on the roof. The painter has a mass of 73.9 kg and the mass of the platform is 20.7 kg. The distance from the left end of the platform to where the painter is standing is d = 1.89 m and the total length of the platform is 5.91 m. How large is the force exerted by the left-hand cable on the platform? 

B) How large is the force exerted by the right-hand cable?

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