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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 3, Problem 106.

Fixture ABCD is used to apply forces to photoelastic models of mechanical components. For the model and the forces shown. Determine (a) the value of α so that the line of action of the resultant of the applied forces passes through the model 100 mm to the right of the 40-N force, (b) the resultant of the applied forces.