(1) 130 10 in 65 16 cord B 45 45 Zo in For the bent rod and load shown, (a) the tension in cord Be (b) the reaction at pin A (mag and direc) (Neglect the weight of the rod.) find : 8 in A
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- A rigid bar of weight W = SOO N hangs from three equally spaced vertical wines( length L = 150 mm, spacing a = 50 mm J: two of steel and one of aluminum. The wires also support a load P acting on the bar. The diameter of the steel wires is ds= 2 mm, and the diameter of the aluminum wire is d = A mm. a Assume £,=210 GPa and EB« 70 GPa. What load Pallowcan be supported at the mitl-point of the bar (x = a) if the allowable stress in the steel wires is 220 MPa and in the aluminum wire is 80 MPa? (See figure part (b) What is /*,Ikw» if the load is positioned at .v = all1? (See figure part a.) (c) Repeat part (b) if the second and third wires are switched as shown in the figure part b.Find support reactions at 4 and Band then use the method of joints to find all member forces. Let b = 3 m and P = 80 kN.-7 Repeat Problem 2.3-5, but n include the weight of the bar. See Table I-I in Appendix I for the weight density of steel.
- A 150-lb rigid bar AB. with friction less rollers al each end. is held in the position shown in the figure by a continuous cable CAD. The cable is pinned at C and D and runs over a pulley at A. (a) Find reactions at supports A and B. (b) Find the force in the cable.(3) 8in pin in slot B 9616 35° 12 in A 5 in 8 in 6 in For the frame and loading shown, find (a) the reaction at A (mag and divec) (b) the reaction at C (mag and direc) (c) the connection forze at B (mag and direc) Note that DE is a two-force member. 3 in 6 in12 in cord 12 in 36 14 24 in B 8 in 26 16 For the bar and loading shown, find = (a) the tension Tin the cord (b) the reaction D at D (in mag/direc form) Neglect the weight of the bar.
- (78 E A O o 1.:ra Your answer Q1 * Find tension in AC and W ? 60 3° 10 lbs W=20 Ibs , TAC=17.32 Ibs W=18.95 Ibs , TAC=21.91 Ibs W=18 Ibs , TAC=20.1 lbs Find the reaction in pin A?2..Assume that the cable GBH is replaced by a cable GB only (TBH-0). So the frame ACD is supported by ball-and-socket joints at A and D and by the cable GB. You know that the frame supports at C a load of magnitude of 268 N. Find the tension in the cable GB. CopMan se reared for praticion or decay 0.925 m 0.35 m 0.5 m 0.5 m 0.875 m H 0.75 m 0.75 m4m U 6 m 100 kN 3 m Reaction of AH (RAH)= Reaction of Av (RAV)= Reaction of F (RF)= 4m E 200 kN 3 m F Problem 1: The cross-sectional area of each member is 1200 mm². Solve for the TRUSS REACTIONS of Problem 1. kN kN kN
- Find the reaction in pin A ? 70% 1 m -1.40 m 0.8 m 1962 NFind the support reactions at A, B and C from the rigid link DEF supported bycylinder at D and F. The link is loaded by force of 20kN as shown in figure. Neglect friction and self weight of link and cylinders. Take diameters of cylinders as 200 mm and DE=EF=300mm.A mechanism carries a constant load P applied to the seat as shown. E For the angle 8, determine the following: (a) the lengths LBE and LAB, in m (b) the angles a and $, in degrees Draw the complete FBD of (c)members AB, FG, EBH and GHI 100 175 Parameter (A= 1 B=3 C= 6 D= 2 E=0) P = 762 N 0 = 32° Note: Figures CDFE and EFGH are parallelograms. 400 800 200 LBE C cont D 150 400 175 900 150 200 Dimensions in millimeters H 150