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A Various geometry: h = 27.9 m h = 4.1 m hy = 58 m 1 = 12.4 m 12 = 17 m 13 = 3.4 m 0 - 56.4 degrees Assumptions: . The main body AEFG can be considered massless The cable CFGJ is massless • The pulleys at F and can be considered massless, frictionless, and of negligible diameter • All bodies are considered rigid. i. Determine the weight of counterweight J in order for the main jb DCB to be horizontal il. Determine the magnitude of the sand y components of force at pin D. Determine the reactions at fixed support A.
Part A- Part A Determine the weight of counterweight J in order for the main jib DCB to be horizontal Enter your answer in units of kN to three significant figures. ΑΣΦινος ? W- KN Submit Frequest Answer > Part 8 - Part 8 Determine the magnitude of the 3-component of force at pin D. Enter the magnitude of the value in units of kN to three significant figures. 30 AED vec ? D. AN Submit Request Answer
Part C- Part Determine the magnitude of the y -component of force at pin D. Enter the magnitude of the value in units of N to three significant figures. 90 Avec ? D, - KN > Submit Request Answer Part D- Part D What potential reactions exist at a fixed support? More than one may be selected. О М 000 F. Submit Request Answer