EXAM 2 – MAE 241 Summer 1 – Dr. K. Sierros Please do these problems as Homework 2 also – Due Wednesday 17 June 2009 1. a) Draw the free-body diagram of the 50-kg paper roll which has a center of mass at G and rests on a smooth blade of the paper hauler. Explain the significance of each force acting on the diagram. b) Determine the reactions at A and B.
2. Determine the force in each member of the truss and state if the members are in tension or compression. Set P1 = 2 kN and P2 = 1.5 kN
3. Determine the internal force, shear force, and moment at points E and F in the beam.