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Engineering Mechanics: Statics
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- As shown by the image below, if the distances are a=1.7m, b=2.3m, and c=4.5m, and the magnitudes of the forces F_B=380N, and F_E=490N, determine the magnitude of the moment caused by force of F_B about point D and point E in N*m.arrow_forwardThe top viewv of a revolving entrance door is shown. 0.8 m Two persons simultancously approach the door and exert forces of equal magnitudes as shown. If the resulting moment about the door pivot axis at a is 25 N .m, determine the force magnitude F from the following answers which of them is correct: 0.8 m 15° O M= 16.18 N.m O M= 0 N.m O M= 18.16 N.m M = 181.16 N.m O M= 161.8 N.marrow_forwardB. determine the moment M, about point O for the force system shown below. What is the direction of rotation? F1 = 10 N 1 m 4 m 60° F2 = 15 N F3 = 20 Narrow_forward
- A 2.0-lb force Fis applied to the knob of the window-opener mechanism when the crank BC is horizontal. Determine the moment of the force about point A and about line AB (report both answers as vectors). Assume a = 1.9 in., b = 2.5 in., c= 1.2 in., and 0 = 21°. C Barrow_forwardThe 6.4-kN force F is applied at point A. (a) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity. (b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero. Assume XA = 0.8 m, yд = 1.2 m, a = 7, b = 11. y, m I 1 A (x, y) F b a -x, marrow_forwardFor the member that is shown below: 1. Determine the moment of the force 50N around point O. 2. Determine the moment of the force 90N around point O. 3. Draw the free body diagram of the shown member. 4. Find the fixed support reactions at point O, knowing that the rigid body is under equilibrium. (neglect the member's weight). 50N 2 m 60N.m. -3m -3m- 90Narrow_forward
- A solid cylindrical shaft anchored to the wall at point O is subjected to 70 N and 85 N couples and a concentrated moment at point E. Determine the resultant couple moment. Hint: You can do this in either of two ways by applying (1) a "scalar" approach by evaluating the individual moments of the x, y, and z components of the 70N and 85N forces, taking positive moments to be in the positive coordinate directions according to the right-hand rule., or (2) the "vector approach" utilizing 3D position vectors using the general cross product definition for the force moment. 70 N 0.8 m 1.2 m 2 6 70 N 1.2 m 0.8 m 9 85 N 12 9 12 -1.2m 1.5m 8 D 85 N C 8 E 200 N·m Xarrow_forwardI Review Part A The tower crane is used to hoist the 2.3-Mg load upward at constant velocity. The 1.5-Mg jib BD, 0.4-Mg jib BC, and 6.2-Mg counterweight C have centers of mass at G1, G2, and G3, respectively. (Figure 1) Determine the resultant moment produced by the load and the weights of the tower crane jibs about point Á and about point B. Express your answers using three significant figures separated by a comma. vec MA MB Submit Previous Answers Request Answer x Incorrect; Try Again; 5 attempts remaining Figure Gy-15 m Gi 125 m 23 marrow_forwardCalculate the moment MO of the 190-N force about the base point O of the robot. The moment is positive if counterclockwise, negative if clockwise.Assume F = 190 N, a = 600 mm, b = 420 mm, c = 230 mm, θ= 56°, and ϕ= 30°.arrow_forward
- Determine the magnitude of the moment about A ( lb in) that produces the 125 lb force necessary to raise the window and whose line of action is the same as that of the shock absorber CB 20.5 in. 4.38 in. A B C 7.62 in. 17.2 in.arrow_forwardProblem 3 Determine the moment exerted by cable AB about point C. The force in the cable is 700 lbs. 6 ft X Z 4 ft B 4 ft D 6 ft 6 ftarrow_forward5 The compound bar is supported by a thrust bearing at A, a slider bearing at B, and the cable CD. Determine the tension in the cable and the magnitude of its moment about the x axis. D 2.8 ft ! 3.5 ft 3.5 ft 270 lbarrow_forward
- International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L