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

question 25

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 25,000 N in the strut is permitted,due to safety.In the figure,under maximum load the y-component of the force exerted on the beam by the pivot at P is closest to:

• A)7060 N
• B)4560 N
• C)9560 N
• D)10,000 N
• E)zero

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