3.104 Five separate force-couple systems act at the corners of a piece ofsheet metal, which has been bent into the shape shown. Determinewhich of these systems is equivalent to a force F = (10 lb)i and acouple of moment M = (15 lb - ftj + (15 lb - ft)k located at theorigin.5 Ib-ft15 Ib-ft5 Ib-ft5 lb-ft15 Ib-ft10 lb10 lb15 Ib-ftB2 ft25 Ib-ft10 lb80 lb-ft2.5 ft10 lb15 Ib-ft2 ft10 Ib2 ft'15 Ib-ftFig. P3.104Lu

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Answered: .104 Five separate force-couple systems…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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4. For the force-couple system as shown, determine the following: Magnitude of the couple moment Mc so that the equivalent system is a single force acting at point P b. a. Point of application of the single equivalent force along line AB if MC is equal to 180 lb-ft counterclockwise. 85 lb 40 ° 100 16 30 lb 15° Mc 35 lb 400 P 1 ft A 85 lb B 1 ft 200 lb
Difficult Problem: If magnitude of MA is 1200 kN – m and the distance between A and B is 3 m, what is the force FB and distance d so that the system shown at the right is equivalent to a force-couple system acting at point D, where the horizontal component of this force is R = 112 kN to the right and the corresponding couple is 635 counterclockwise. 60 kN 30 50 kN 2 m MA 60° 15° 200 kN m 100 kN 4 m Fs 2 m 200 kN 30 60 kN -3 m
2.81 The steering column of the rack-and-pinion steering mechanism lies in the z-plane. The tube AB of the steering gear is attached to the automobile chassis at A and B. When the steering wheel is turned, the assembly is subjected to the four couples shown: the 3-N - m couple applied by the driver to the steering wheel, two 1.8-N - m couples (one at each wheel), and the couple formed by the two forces of magnitude Facting at A and B. If the resultant couple acting on the steering mechanism is zero, determine Fand the angle e (the magnitude and direction of the bearing reactions). 3N-m 360 mm 1.8N-m 1.8 N-m Figure P2.81
2.79 The arm ABCD of the industrial robot lies in a vertical plane that is inclined at 40° to the yz-plane. The arm CD makes an angle of 30° with the vertical. A socket wrench attached at point D applies a 52-lb - ft couple about the arm CD, directed as shown. (a) Find the couple-vector that represents the given couple. (b) Determine the moment of the couple about the z-axis. 52 Ib- Figure P2.79
If each of the force system shown is reduced to a force-couple system with the force acting at A, which force systems are equivalent? 400 N 200 N-m 400 N 200 N 4 m (a) (d) SCO N 200 N 2300 N.m A 1800 N.m 800 N 200 N.m 2400 N-m 4000 N-m 600 N 400 N 300 N (b) (e) (h) 900 N-m A 200 N 400 N.m 300 N D 300 N-m 300 N 300 N-m 800 N (c) (f) 900 N 4500 N.m 300 N-m 200 N
6 in. 6 in. 160 lb-in. 18 in. B 30 lb 34 lb H 18 in. 12 in. D 6 in. 8 in. in. Determine whether the force-and-couple system shown can be reduced to a single equivalent force R. If it can, determine R and the point where the line of action of R intersects the yz-plane. If it cannot be so reduced, replace the given system with an equivalent wrench and determine its resultant, its pitch, and the point where its axis intersects the yz-plane.
3.1 Determine which of the force systems in (b) through (f) are equivalent to the force-couple system in (a). PLEASE BE SPECIFIC. I HAVE THE SOLUTION BUT I AM UNABLE TO COMPREHEND IT 10h 50 h- t0 10 lb 14 tb (a) (b) (e)
20 KN 2 kN /m 40 kN m 150 kN m 450 mm- 600 mm 8m 3m 300 mm 5KN 3 KN /m +15 m--1.5 m- 3m S kip t 15 kip ft 15 kip ft 6 ft 10 t 6 ft Determine the moment of the force system of Figure below with respect to point A and B
Knowing that = 36° and Mc = 350 ft-lb, reduce the force-couple system shown to an equivalent force and couple at point B. Enter the magnitude of the couple at B below in ft-lb to the nearest whole ft-lb. Enter a positive number if the couple at B is CCW and a negative number if the couple at B is CW. 4 Mc 50 lb 150 lb -3 ft- A 2 ft 4 ft
Section 3.3 Moment of a Force 3.17 The four forces shown have parallel lines of action. Member AB is perpendicular to the lines of action of these forces. (a) Determine the moment of each force with respect to point A. (b) Compute the algebraic summation of the moments with respect to point A. Be sure to note the sense of the resul- tant moment. A 20 lb PROBLEM 3.17 5' 40 lb + 6' 50 lb 230 lb 2 2x2 8' B TIRSINT
5. A transmission tower is held by three guy wires attached to a pin at A and anchored by bolts at B, C, and D. If the tension in wire AB is 110 lb. (a) Determine the vertical force P exerted by the tower on the pin at A. (b) Determine the moment about point 0 of the Resultant Force. 25 ft 20 f 100 ft 6011 3.0 fr 74 ft
Replace the system of forces acting on the frame as shown by a resultant R at A and a couple acting horizontally through B and C. Force on top 10 kN, bottom left is 40 kN, and bottom right is 50 kN. 1m A 3 m 2 m 4 m OR= 20KN, B = 95KN, C= -95KN OR- -20KN, B = -95kN, C = 95KN OR= 20KN, B = -95KN, C = 95kN OR=-20KN, B = 95KN, C = -95kN mathalino,com

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