A 56-kg woman stands at C on the vintage step stool shown. Half the womans weight is

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A 56-kg woman stands at C on the vintage step stool shown. Half the woman€™s weight is carried by the legs shown. The bottoms of the legs are not quite parallel to the floors so that bearing can occur in four ways: at A and B, at A and, B€² at A€² and B, or at A€² and. B€² Neglecting the mass of the stool and assuming the floor to be frictionless, determine

(a) For which combination of bearing points the force in member FG is maximum.

(b) The corresponding value of the force in FG.




tw 200 mm 350 mm 75 mm- 25 mm -225 50 mm -175 mm -75 mm


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Vector Mechanics for Engineers Statics and Dynamics

ISBN: 978-0073212227

8th Edition

Authors: Ferdinand Beer, E. Russell Johnston, Jr., Elliot Eisenberg, William Clausen, David Mazurek, Phillip Cornwell

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