The y-component of the force F which a person exerts on the handle of the box wrench is known to be 70 lb. Determine the x-component and the magnitude of F. Ans. F, - 29.2 lb, F = 75.8 lb %3D %3D 12 --x

Determine the magnitude of the force which member CD exerts on the pin at C. A 138° B 0.79 m Answer: CD = i 0.58 m 150 N 0.58 m 38° D N 0.79 m

P2: The 50-lb rectangular access door is held in the 90° open position by the single prop CD. Determine the force F in the prop and the magnitude of the force normal to the hinge axis AB in each of the small hinges A and B. 12" 40" C 2 B 48