4. Determine the largest weight W that can be supported by two wires shown in the figure The stress in either wire is not to exceed 30 ksi. The cross-sectional areas of wires AB and AC are 0.4 in2 and 0.5 in², respectively. 30 50
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Solved in 2 steps with 2 images
- Determine the force in member BE of the loaded truss. Enter a positive number if in tension, negative if in compression. 11' B 14' 15° 15° F E 11' 15° 1.0 L 1.7L 15° 45° A Answer: BE = i !L 45° DDetermine the average normal stress in rod AB and the average normal stress in rod CDThe dimensions of the Tensile Strain is Select one: a. MLT-1 b. ML-1T-2 c. Dimensionless d. ML2T-2 e. ML-1T-1
- 3. A steel elevator cable will have a working load of 20,000 N. The length of the cable will be 30 m, and it must not stretch more than 0.5 cm. What must the diameter of the cable be? eng tog 002 rua fonds mao s noc3. Solve this with a clear solution to avoid confusion.2. The pin at A has a diameter of 0.25 in. If it is subjected to double shear, determine the average shear stress in the pin. -2 ft +2 t- 3 ft 600 Ib B
- A copper wire of length 3-m and 1-mm diameter is subjected to a tension of 5-N. Calculate the elongation produced, if the young's modulus of copper is 11x1010 Pa. 4.34x10-5 mm a. b. 0.04 mm 8.68x105 mm d. C. 0.17 mm2. The homogenous bar LORS shown below is supported by a cable that runs from L to O around the smooth peg at J, a vertical cable at R and a smooth inclined surface at S. Determine the mass of the heaviest bar that can be supported if the stress in each cable is limited to 8ksiThe area of cable LO is 1.2in² and that of the cable at R is 1.4in². L 41% 30° 2 m 2m R 2 m For problem 2 50° Figure P-114Describe the stress involved when stretching out a rubber band by pulling its ends apart
- Determine the force in each member of the loaded truss. The force is positive if in tension, negative if in compression. 7m Answers: AB= i BC = i AC = i 1.03 -0.747 0.640 18 m B 150 kg N N NA steel rod 2,0-m long has a cross-sectional area of 0,30 cm?. It is hung by one end from a support, and a 550-kg milling machine is hung from its other end, EsteeF20,0x1010 Pa. Determine the following: 1. Stress on the rod. x10" Pa 2. Strain of the rod. x1o* 3. Elongation of the rod, mm