Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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- Two weights, A and C, are fixed to a bar, B. Their masses are: A = 60 kg, B = 230 kg,C = 45 kg. B is, in turn, connected to a fixed vertical post by a hinge and a support cableD. The geometry of the system is shown at right. Treat weights A and C as point masses a)What is the tension in support cable D? Be sure to include a detailed freebody diagram to accompany your analysis.b) What is the magnitude of the force provided by the hinge?c) What is the moment of inertia of the A + B + C as a rigid system, for rotationabout the hinge? For analysis, break the beam into a short piece to the left of thehinge, and a separate longer piece to the right of the hinge. If the support cable D on should break,d) what is the angular acceleration of the beam and weights at the moment the cable breaks?e) what is the magnitude of the linear acceleration experienced by each of the weights, A and C, at moment the cable breaks?arrow_forwardQ3: For the structure shown in Figure, Compute the forces in all pines. 50 lb 5ft 80 Ib 8ft 6 ft 2 ft+ (20 Degree)arrow_forwardIn the figure, a nonuniform bar is suspended at rest in a horizontal position by two massless cords as shown in the figure here. One cord makes the angle 0 = 31.1° with the vertical; the other makes the angle p = 58.9° with the vertical. If the length L of the bar is 5.9 m, compute the distance x from the left end of the bar to its center of mass. L comarrow_forward
- A stoplight of mass m is hung from a massless wire that has segments to a horizontal pole and a vertical pole as shown in the figure. The stoplight is not moving. 162 T₂ 60° T₁ 60° The wire segments create angles 60° with respect to the horizontal pole and 60° with respect to the vertical pole as shown and the mass creates tensions in the segments of the wire of magnitude T₁, and T2, as labeled in the diagram. (A) Draw a free-body diagram for the hanging mass system showing (and labeling) all forces acting on the hanging stoplight mass. Then draw x and y axes for your free-body diagram. (B) Use Newton's-second law to write equations for forces acting on the stoplight in component forms (x and y, separately) in terms of: tension magnitudes T₁ and T2, the angles shown, the mass of the object m and the gravitational constant g. You do not need to solve the equations but simplify as possible. (C) The weight of the stoplight is determined to be 343 Newtons. Solve for magnitudes of T₁, T2.arrow_forwardNeed help please Include all units and stepsarrow_forward
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