-A Uniform 600 Kg Beam,6 M Long,is Freely Pivoted at P.The

Multiple Choice

-A uniform 600 kg beam,6 m long,is freely pivoted at P.The beam is supported in a horizontal position by a light strut,5 m long,which is freely pivoted at Q and is loosely pinned to the beam at R.A load of mass is suspended from the end of the beam at S.A maximum compression of 18,000 N in the strut is permitted,due to safety.In the figure,under maximum load,the x-component of the force exerted on the beam by the pivot at P is closest to:

A) 10,800 N
B) 14,400 N
C) 12,600 N
D) 16,200 N
E) 18,000 N