An experimental device imparts a force of magnitude F = 57 lb to the front edge of the rim at A to simulate the effect of a slam dunk. Compute the moment of the force F about point O and about point B. The moments are positive if counterclockwise, negative if clockwise. Finally, locate a point Ċ from the base at O to the location on the ground where the force imparts zero moment. The distance d from point O to point Ċ is positive if C is to the right of O, and negative if to the left. Assume a = 36 in., b = 28 in., h = 12 in., H = 10 ft, c = 5, and d = 6. Answers: Mo= MB = d= i i Fel a h B b ST H F 73 lb-ft lb-ft ft

Note: handwritten solution are strictly prohibited  ?.

Two force couples and a concentrated 90 lb-ft couple on the beam. Assume the 90 lb-ft couple acts at the beam centerline and the distance 1.25 ft vertically between the 125 lb forces. Similar to the example presented in class, compute the resultant moment vector two different ways (the answers should be the same) A. Recognize force-couple pairs and use r x F between their lines of action, plus add in the couple-moment. B. Sum moments of all forces and moment couple about a point A   Please show/provide all written work so I can understand. Thank you!

procedure step by step if possible

parts d,e,f

Question #2: Suppose you needed to replace the 2000 lb force in the figure below with a horizontally- oriented force through point A, a vertically-oriented force through point C, and a couple. Give the vector expressions for the forces through A and C as well as the vector expression for the couple. Your vector expressions will depend on your choice of coordinate system (which direction relative to the figure you choose for x, y, and z) so please be sure to show your coordinate system on your schematic and free-body diagrams. 2000 lb 30 B 5 ft A 2 ft