Q.4) A basketball player weighing 200 lb hangs on the rim of the basketball hoop shown below. The vertical post ABCD is fixed at support D and weighs 100 lb with its center of gravity at point C. The backboard hoop assembly weighs 60 lb with its and its center of gravity is located at point G. Determine the support reactions at D and forces acting at pins E and F. Neglect the weights of members AE, IF, and IJ. E 0.4 ft

Member ABC is supported by arm BD (pin connections at B and D) and a pin support at A. Member ABC weighs 12 lbs., while the weight of arm BD is negligible in comparison. Assume member ABC is homogeneous having a center of gravity at its midpoint. If a force of T = 45 lb is applied at point C as shown, determine the support reactions at pin A and the reaction at pin B. State whether arm BD is in tension or compression.

i need the answer quickly

Using the method of joints, calculate the force in each member of the truss shown. State whether each member is in tension or compression. Figure 2 The homogeneous 48-lb plate is welded to the vertical shaft AB of negligible weight. The assembly is supported by a slider bearing atA and a thrust bearing at B. Determine the force in cable CD and the magnitude of the bearing reaction at B in vector form. Figure 3