1. Use the METHOD OF SECTIONS to determine the forces in members AC, BC, and BD of the truss in Figure 1 and indicate whether each of these members is in tension or compression. As usual, show any free-body diagram(s) (including all essential components), and clearly annotate all calculations. Note: You may use the support reactions calculated in Tutorial S2, Problem 3 without repeating the necessary calculations. A C E 220° 1 m 25 KN 1 m 1 m Figure 1. [ans.: FAC = 51.29 kN (tension); FBC = -22.73 kN (comp); FBD = -16.07 kN (comp)]

1. Use the METHOD OF SECTIONS to determine the forces in members AC, BC, and BD of the truss in Figure 1 and indicate whether each of these members is in tension or compression. As usual, show any free-body diagram(s) (including all essential components), and clearly annotate all calculations. Note: You may use the support reactions calculated in Tutorial S2, Problem 3 without repeating the necessary calculations. A C E 220° 1 m 25 KN 1 m 1 m Figure 1. [ans.: FAC = 51.29 kN (tension); FBC = -22.73 kN (comp); FBD = -16.07 kN (comp)]

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter5: Three-dimensional Equilibrium

Section: Chapter Questions

Problem 5.39P: The bent rod of negligible weight is supported by the ball-and-socket joint at B and the cables...

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1. Use the METHOD OF SECTIONS to determine the forces in members AC, BC, and BD of the truss in Figure 1 and indicate whether each of these members is in tension or compression. As usual, show any free-body diagram(s) (including all essential components), and clearly annotate all calculations. Note: You may use the support reactions calculated in Tutorial S2, Problem 3 without repeating the necessary calculations. А C 220° 1 m 25 KN В 1 m 1 m Figure 1. [ans.: FAC = 51.29 kN (tension); FBC = -22.73 kN (comp); FBD = -16.07 kN (comp)]
The following figure (5.12 from the text) shows a truss with several zero force members. Identify the seven (7) zero force members in the following list. Hint: make many passes through the truss. Once you find one zero force member you'll find more. Hint 2: You don't need to determine the magnitudes of the reactions, but you do need to determine if any of them are zero. 4 m 4 m 4 m. IF G 3 m 3 m B 40 kN 80 kN K 3 m A 4 m АК AL BJ BK CD СЕ CJ DE EJ FG FI HI O O O O 00000 O O0
Problem 2 Determine the reaction for the given support in the truss as shown in Figure 2.0. All inclinced forces are perpendicular in member AC USE 3 DECIMALS ONLY. 15 EN 10 kN 5 KN 12m 2.5m 2.5m 2.5m 2.5m 15 kN 8.5 kN 18 kN Figure 2.0 O 29°C Mostly cloudy ^ G
2 m Roller 2 m 45° 45° A 2 m Pin-Joint 500N 3.1 Determine the reaction forces at the supports of the truss structure. Determine the member forces (FAB, FAD, FAC, Foc, FCD ). Define whether each member is in tension or in compression. Based on your calculations, replace the figure with an equivalent truss structure by removing the zero-force members, if there is any, and sketch its figure (showing dimensions, supports, applied load, 50ON, similar to the figure given above). 3.2 3.3 3.4
Figure 1: For the frame shown, determine the magnitude of the pin reaction at B. Neglect the weight of the frame. (2 decimal point, indicate the answer in kN. Ex: 3.87kN just encode 3.78)
Find the support reaction at A and the tension at the rope from the beam shown bellow. The pulley is frictionless. Given: a = 8 ft, b = 4 ft, c = 2 ft, r = 6 in, w1 = 1500 lb/ft. Note: Draw the free body diagram and answers should be in 3 decimal places.
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Itranscript Required Information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Consider the given figure. Given: P = 359 N. A 75 mm -100 mm- O 50 mm- Determine the force in member BD and the components of the reaction at C. Assume negative value as compression. The force in member BD is N (Click to select) The force in the components of the reaction at Cis Cx= N(Click to select) and Cy=[ N and (Click to select)
The given bridge truss supports point loads of 200kN at joints B, D, F, H, and J. The structure is supported by pin support at the joint A and roller support at the joint I. Determine the member forces AD, CE, CF, FH, GI, and IJ. Indicate whether the forces are compression or tension. Show your calculation steps in detail and write your answers in the box below. 200 kN 200 kN 200 kN 200 kN 200 kN D F В E 7 m 4 m 3 m -5 m -5 m 5 m -5 m
Required information In the given figure, all pulleys are frictionless. Take the value of P to be 220 lb. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. P 0.5 ft P0.58 --20-20-20- Determine the reactions at point A and the force supported by the cable. (Do not include a minus sign in your response.) The horizontal component of the reaction force at A is lb →. The vertical component of the reaction force at A is The tension in the cable is lb. lb 1.
The member is supported by a square rod which fits loosely through the smooth square hole of the attached collar at A and by a roller at B. The member is subjected to the forces Fi = 300 N, F2 = 450 N, and F3 = 600 N. (Figure 1) Determine the components of the reaction force of the support at A using scalar notation. Express your answers using three significant figures separated by comma. Ar, Ay = -300,-450 N Submit Previous Answers v Correct Part C Determine the components of moment of the reaction at A using scalar notation. Figure 1 of 1 Express your answers using three significant figures separated by commas. vec (MA)=: (MA)y, (MA): =- 900,100, – 1350 N.m B 1 m 2 m Submit Previous Answers Request Answer 2 m X Incorrect; Try Again; 4 attempts remaining < Return to Assignment Provide Feedback 圓

Rigid arm AB is subject to a downward force F=270 lbf. It is supported by asquare shaft journal bearing at A and a cable BC.A. Draw a clear and large free-body diagram (FBD) to show all reaction components on AB. Ifany are not engaged, cross them out and add the note “N.E.” for “Not Engaged.” You do NOTneed to set up any equations or solve for any of the reactions.B. Find the unit vector for cable BC.