6 in. 3 in. The movable bracket shown may be placed at any height on the 3 inch diameter pipe. If the coefficient of static friction between the pipe and bracket is 0.25, determine the minimum distance x at which the load W can be supported.
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- Check Your Understanding Find the compressive stress and strain at the base of Nelson’s column.Check Your Understanding A 400.0-N sign hangs from the end of a uniform strut. The strut is 4.0 m long and weighs 600.0 N. The strut is supported by a hinge at the wall and by a cable whose other end is tied to the wall at a point 3.0 m above the left end of the strut. Find the tension in the supporting cable and the force of the hinge on the strut.inoge The Fink truss is supported by a hinge at A and by rollers on a 1 to 2 slope at B. The bracing bars are normal to the inclined members at their midpoints. The wind loads are perpendicular to AC. Determine the resultant of the forces. 1580 Ib 3160 Ib 1580 Ib 12' В 8400 Ib 18.000 lb 72'
- If load B has a downward velocity vB, determine the upward component (vA), of the velocity of A in terms of b, the boom length l, and the angle 0. As- sume that the cable supporting A remains vertical. 1/2(1 + cos 0) Ans. (VA)y UB b tan 0 1, A b, y ВA vertebra is subjected to a sheering forcc of 500 M. Fincd shear defo rmations taking the rertebra to be a y m eylinder 3.00 € high and 400 am in aia meterA rod, pinned at A, is being pulled using a cable at B. If the cable remains horizontal while pulling the rod, determine the smallest angle for equilibrium. The spring at C has stiffness of k= 60 N/m and unstretched when 0 = 0°. B F = 20 N k = 60 N/m, 0.5 m 1m 2 m
- A uniform steel plate 18 in. square weighing 68 lb is suspended in the horizontal plane by the three ver- tical wires as shown. Calculate the tension in each wire.Suppose the weight of the drawbridge in the figure below is supported entirely by its hinges and the opposite shore, so that its cables are slack. LL up Additional Materials Reading CG 1.5 m W (a) What fraction of the weight is supported by the opposite shore if the point of support is directly beneath the cable attachments? 1/6 7.5 m (b) What is the magnitude in newtons and direction of the force the hinges exert on the bridge under these circumstances? The mass of the bridge is 2,625 kg. magnitude N direction 40°The following forces are acting on the bracket below. The bracket has a width w of 2 inches and a height h of 3 inches. The bracket is in equilibrium (not accelerating). Determine F3y knowing F1x-98 lbf and F1y=195 lbf. For this question, what is F3.y in Ibf? Note that the y- direction is pointing up, so if the force is pushing down on the bracket, it has a negative magnitude. 39
- A road with a radius of 0.005m and length of 2n stretches 0.002m when subjected to a tension force of 10000N young's modulus for this rod?The signboard truss is designed to support a horizontal wind load of 770 lb. If the resultant of this load passes through point C, calculate the forces in members BG and BF. The forces are positive if in tension, negative if in compression. 770 lb- Answers: BG- BF- i i B 8' G -4' 6' 6 F in 6' lb lbThe (450 kg) uniform beam AB supports (220 kg) load as Shown. Determine the readtions otar at the supports A´ wnd 8" squoddns the 5.6 m t2.4 m 220 kg