A three-hinged arch is composed of two trusses hinged together at D. Compute the components of the reaction at A. 36 kN 60 kN 9m а. 52.8 kN b. 62.0 kN C. 42.6 kN d. 32.4 kN °, F 6m 6m- 6m

Answer only question #2

The assembly has a mass of 4 Mg and is hoisted using the winch at B. The boom has a mass of 2 Mg and mass center at G. Determine the greatest upward acceleration of the assembly so that the compressive force in the hydraulic cylinder supporting the boom does not exceed 182 kN. What is the tension in the supporting cable? 1m 4m B 2m 6m

2. The light right-angle boom which supports the 4KN cylinder is supported by the three cables and a ball-and-socket at O attached to the vertical x-y surface. Determine the reactions at O and the cable tensions. у 1.2m 1.5 m D C 1m E 1m A 2.2m B 0.75 m 0.75 m