Q.2) Determine the magnitudes of forces P and Q acting on the block so that the resultant of all four force vectors equals zero if 0 = 30°. Assume the 120 lb force is vertical, the 70 lb force is horizontal, Q force is perpendicular to the incline, and P is parallel to the incline. 120 lb 70 lb

A plank, 12-ft long and of negligible weight is supported and carries the horizontal and vertical loads shown. The coefficient of friction is 0.25. If T = 320 lb, determine the value of P to start motion downward. What is the normal force developed between the pole and horizontal surface?

Question 3 A compound beam is connected by a pin at B, and a pin in a slot at C, and loaded as shown. Couple moment M = 500 N.m, force F= 2500 N, the triangular distributed load has a peak intensity w = 1200 N/m. Force F acts at an angle 0 = 60°, while the beam dimensions are such that a= 1.0 m, b = 0.5 m, c = 1.0 m, d= 1.5 m, e = 1.0 m, f= 2.0 m, and g= 1.0 m. M while E D Determine: a) the horizontal and vertical components of the pin reactions at B and C, and b) the normal force, shear force, and bending moment acting at point F of the beam.

2. A concrete pedestal in the shape of a cube and is 6 feet on each side. The pedestal supports a superimposed load of 150,000lbs located on the Y-Y axis as shown in the diagram. Calculate the maximum eccentricity (e) for zero tension at the base of the pedestal. Include the weight of the pedestal using a concrete unit weight of 150 pcf. P = 150,000 lbs 3'-0" Y- 3'-0" 3' - (0" 3'-(" 6'-0"