2 ft 4 ft 2 ft 60° 5 ft х 1 ft

The pin at B is attached to member ABC and can slide freely along the slot cut in the fixed plate. Neglecting the effect of friction, determine the couple M required to hold the system in equilibrium when 0= 60°.

A 3-m boom is acted upon by the 4-kN force shown. Determine the tension in each cable and the reaction at the ball-and-socket joint at A.

The frame shown supports a mass of M = 49 kg. Knowing that L = 0.45 m determine the reactions at A and B and the forces exerted on ACD by the pin at C. Enter the vertical reaction at A below. Express you answer in N to the nearest whole N. 100 mm 1 0.5 m B A 1m D M

The lid of a roof scuttle weighs 75 lb. It is hinged at corners A and B and maintained in the desired position by a rod CD pivoted at C; a pin at end D of the rod fits into one of several holes drilled in the edge of the lid. For α=50°, determine (a) the magnitude of the force exerted by rod CD, (b) the reactions at the hinges. Assume that the hinge at B does not exert any axial thrust.

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09.A loading car is at rest on a track forming an angle of25owith the vertical. The gross weight of the car andits load is 5500 lb, and it acts at a point 30 in. from the track, halfway between the two axles. The car is heldby a cable 24 in. from the track. Determine the tensionin the cable and the reaction at each pair of wheels

Three rods are welded together to form a “corner” that is supported by three eyebolts. Neglecting friction, determine the reactions at A, B, and C when P= 240ib, a = 12 in., b= 8 in., and c = 10 in.