Assignment:
Q1. A horizontal circular plate is suspended as shown from three wires that are attached to a support at D and form 30° angles with the vertical. Knowing that the z component of the force exerted by wire BD on the plate is -32.14 N, determine ( a) the tension in wire BD,
Q2. A 300- N force is applied at A as shown. Determine (a) the moment of the 300- N force about D, ( b) the smallest force applied at B that creates the same moment about D.
Q3. It is known that a force with a moment of 960 N x m about D is required to straighten the fence post CD. If d = 2.80 m, determine the tension that must be developed in the cable of winch puller AB to create the required moment about point D.
Q4. A small boat hangs from two davits. The tension in line ABAD is 82 lb. Determine the moment about C of the resultant force Ra exerted on the davit at A.
Provide complete and step by step solution for the question and show calculations and use formulas.