Problem 1 (35 pts) The L-shaped bar shown below is supported…

Problem 1 (35 pts) The L-shaped bar shown below is supported by a thrust bearing at A and rests on a frictionless, horizontal surface at B.  The force F has magnitude 4 kN and is in the negative y-direction.  The distance b is equal to 0.15 m. a.) Carefully draw a free body diagram of the bar. Make it clear what reactions are present at points A and B. b.) Determine the moment vector produced by force F about point A.  Moment Vector = ( [x-component] i + [y-component] j + [z-component] k) kN-m

Problem 2 (35 pts) The bar ABC is pinned to the wall at loca…

Problem 2 (35 pts) The bar ABC is pinned to the wall at location A.  At point C a frictionless pulley is connected.   The tension in the cable is T = 100 lb.  The bar has a force of F applied at location B.  A torsional spring is installed at location A; the torsional spring has been rotated 60 degrees clockwise from its unloaded state (i.e., the torsional spring is unloaded when the bar ABC is vertical).  The stiffness of the torsional spring is 20 lb-in/degree. a.) Draw a free body diagram of bar ABC. b.) What is the magnitude of the moment that the torsional spring exerts on the bar?  [moment] lb-in What direction is the moment (clockwise or counterclockwise)? [direction]