Question

I will type in the questions as appeared in the book so thatyou cansolve it easily. Please help me, because the concept isverydifficult compared to solving simple torque questions. Thankyou foryour assistance.

A uniform 5.00 m long horizontal beam that weighs 315 Nisattached to a wall by a pin connection that allows the beamtorotate. Its far end is supported by a cable that makes an angleof53 degrees with the horizontal, and a 545 N person is standing1.50m from the pin. Find the force in the cable Ft and theforceexerted on the beam by the wall R if the beam isinequilibrium.

#1. (Read above problem)

Rework the example problem above with axis of rotationpassingthrough the center of mass of the beam. Verify that theanswers donot change even though the axis is different.

#2 (Different than given problem)

A uniform bridge 20.0 m long and weighing 4.00 x 10^5 Nissupported by two pillars located 3.00 m from each end. If a 1.96x10^4 N car is parked 8.00 m from one end of the bridge, howmuchforce does each pillar exert?