L=5m ·x- T B 1.2 m -1.6 m→
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The 90-kg man, whose center of gravity is at G, is climbing a uniform ladder. The length of the
ladder is 5 m, and its mass is 20 kg. Friction may be neglected. Compute for the following given that x = 1.5 m:
[1] the normal reaction at B (Answer: 858.375 N) and the total force at A (Answer: 647.479 N)
[2] the vertical reaction at A (Answer: 392.400 N) and the horizontal reaction at A (Answer: 515.025 N)
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- The problem I am solving shows a point B on the OD of the pipe that lies on the z-axis. When using the equation tau =(Mr)/J, I get 15.5 MPa, not 124 MPaThe state of 2D stress at a point is given by a matrix [100 30] MPa MPа 30 20 Ox Txy Tyx Oyy The maximum shear stress in MPa isFigure Part A Fuc= 0.97 5m HA 2m KN Determine the magnitude of the projected component of the F-5 kN force acting along the axis BC of the pipe. Suppose that a 3.1 m and b=4.4 m (Figure 1) Express your answer to three significant figures and include the appropriate units. Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining B ? a 1m 1 of 1
- An aluminum rod is hanging from one end. The rod is 1 m long and has a square cross section 20 mm by 20 mm. Find the extension of the rod resulting from its own weight. Take E = 70 GPa and the unit weight = 27 kN/m3.NoneThe inner diameter of the AB compressed air tank is 160, the wall thickness is 1.Since the manometer pressure in the tank is 1,6 ,at point a at the top of the tank maximum normal stress and determine the maximum plane shear stress.(c=16 , d=38, e =32, g=160, h=1, k =1.6 , F=160)
- Please find the question attached.F2 Q1) Axial displacement of point C in the system shown on the left is 0.01 cm. Find the maximum elongation of the bar and the maximum normal stress. A F1 A. GIVEN: F2 = 100 kN, (1 = 240 cm, €2= 160 cm, bi = 5 cm, bz=10 cm, h=5 cm, E=2.107 N/em², a=20 cm Note: neglect stress concentration. h bị b2 A-A sectionr Q2. A bracket is attached to a vertical column by means of six identical bolts as shown in Fig. 1. It is subjected to an eccentric force of P-80 kN at a distance of 200 mm from the center of column. What is the magnitude of maximum shear force and which bolt carry it? P= 80 kN 200 Fig. 1 1 2- 75 6 30 75 → 5 .5 1- 50 10-50-1
- The beam is supported by rods AB and CD that have different cross-sectional areas. The area of rod AB is AAB = 10 mm² .The area of rod CD is Acp = 8.25 mm². B F₁ Values for the figure are given in the following table. Note the figure may not be to scale. Variable Value F₁ d₁ d₂ NAB= 5050 N 3.25 mm 0.5 mm a. Determine the magnitude of the normal internal force in rod CD, NCD. b. Determine the magnitude of the normal internal force in rod AB, NAB. c. Determine the normal stress in rod CD, OCD. d. Determine the normal stress in rod AB, O AB. Round your final answers to 3 significant digits/figures. NCD = N NRepeat the preceding problem using sx= 5.5 MPa. ??y= 4 MPa. and txy= 3.2 MPa.3. Three bars each made of different materials are connected together and placed between two walls when the temperature is T₁ = 12 degrees Celsius. Determine the force exerted on the rigid supports when the temperature becomes T₂ = 70 degrees Celsius. The material properties and cross-sections are given in the figure. Steel Est = 200 GPa Cst = 12(10-6)/°C Ast = 200 mm2 300 mm Brass Ebr = 100 GPa abr=21(106)/°C Abr = 450 mm² Copper Ecu = 120 GPa acu = 17(10-6)/°C 515 mm² Acu 200 mm- 100 mm