The frame shown is supported by a hinge at E and a roller at D. Compute the horizontal and vertical components of the hinge force at C as it acts upon METHOD OF FRAMES BD.

The needle-nose pliers are used to either cut objects at location A or grip objects at location B. Compute (a) the cutting force at A and (b) the gripping force at B in terms of the applied force F. Determine the magnitude of the pin reaction at O in both cases. Neglect the effects of the slight opening of the jaws to accommodate the gripped items. B Answers: 66 mm 14 mm A O (a) The cutting force at A: 103 mm FA i (b) The gripping force at B: FB = i F F F The pin reaction at O: Fo- i F The pin reaction at O: Foi F F

Two lifting strops are connected at their lower ends to a common shackle from which a load of 25 kN hangs. If the ropes make angles of 32° and 42°, respectively, to the vertical, find the tension in each rope.

Pin A, which connects the 200-kg steel beam with the center of gravity at G to the vertical column, is welded both to the beam and to the column. To test the weld, the 70-kg man loads the beam by exerting a 300-N force on the rope which passes through a hole in the beam as shown. Calculate the moment supported by the pin. Express your answer in units of kN-m. A Welded pin 1200 mm Go -600 mm 300 mm