COE 2001: Statics Late Short Summer Session 2022 Homework 4: Equilibrium in Two and Three Dimensions, Statical Determina

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Coe 2001 Statics Late Short Summer Session 2022 Homework 4 Equilibrium In Two And Three Dimensions Statical Determina 1 (288.46 KiB) Viewed 31 times

COE 2001: Statics Late Short Summer Session 2022 Homework 4: Equilibrium in Two and Three Dimensions, Statical Determinacy and Constraint Adequacy 3. Consider a trap door ABCD, which is supported by two hinges at A and B, along with cable CE, stretching from corner C to an anchor at point E. A 400 N load is applied directly downwards at corner D of the trap door. You may assume that only hinge B carries a thrust load (i.e., a load in the x-direction). You may also assume that neither hinge A nor hinge B provide any couple reactions. x -200 mm 80 mm 100 mm -400K (N) IZ 200 mm (a) Is this system statically determinate? Why or why not? (b) Is this system adequately constrained? Why or why not? (c) If you did not assume that the hinges provided no couple reactions, would your answers to (a) or (b) change? Why or why not? (d) What is the tension in cable CE? (e) What are the reaction forces at hinges A and B?