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COSMOS: Complete Online Solutions Manual Organization System Vector Mechanics for Engineers: Statics and Dynamics , 8/e, Ferdinand P. Beer, E. Russell Johnston, Jr., Elliot R. Eisenberg, William E. Clausen, David Mazurek, Phillip J. Cornwell 2007 The McGraw-Hill Companies. Chapter 4, Problem 141. The uniform 10-lb rod AB is supported by a ball-and-socket joint at A and leans against both the rod CD and the vertical wall. Neglecting the effects of friction, determine ( a ) the force which rod CD exerts on AB , ( b ) the reactions at A and B . ( Hint: The force exerted by CD on AB must be perpendicular to both rods.) ... View Full Document