17. The (vertical) forces at points A, Band Pare FA, FBand FP, respectively. We note thatFP= Wand is upward. Equilibrium of forces and torques (about point B) lead to 00.ABAFFWbWaF++=−=(a) From the second equation, we find FA= bW/a= (15/5)W= 3W= 33(900 N)=2.7 10 N×.(b) The direction is upward since
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.