Q3. Draw a FBD of the beam and find the reaction forces at A and Brequired for equilibrium. This question will be marked the way a test question would be, for both correctness and completion. A W 3 m w = 160x N/m 2 m B
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- The cable AOB weighs 5.2 N/m. When the horizontal 30-N force is applied to the roller support at B, the sag in the cable is 5 m. Find the span L of the cable.Find the reactions at A and C. Weight of the bar is negligible.A uniform bar 3.00 m long is held by ropes at the ends making angle 60.0 and 30.0,respectively, with the horizontal. A weight of 200 N is hung 0.500 m from the leftend where the 60.0 rope is attached. Find the tension in the ropes (T1 & T2) andthe weight (W) of the bar
- The 400-kg precast concrete section is hoisted by a vertical force 'T' from a crane. Find the tension in cables AB, AC, AD.Ancient pyramid builders are balancinga uniform rectangular stoneslab of weight w, tipped at anangle u above the horizontal, usinga rope (Fig.). The rope isheld by five workers who share theforce equally. (a) If u = 20.0°, whatforce does each worker exert on therope? (b) As u increases, does eachworker have to exert more or lessforce than in part (a), assuming theydo not change the angle of the rope? Why? (c) At what angle do theworkers need to exert no force to balance the slab? What happens if uexceeds this value?A crate with dimensions l = 0.50 m and h = 0.75 m rests on a plane that is inclined by θ = 30◦ from thehorizontal. The crate is in equilibrium, but if the crate were too tall, it will fall over down the slope.Find the effective point of application of the normal force on the crate, i.e., where is the normal force actingon the crate, keeping the crate in equilibrium? Hint: choose the crate’s center of mass as the axis of rotation.
- find the reactions for each.A uniform beam that 10-m long is being supported by two men, one man at each end. The weight of the beam. Is 100-N. If the first man supporting at the right side exert twice as much as the second man on the left, where must a 50-N motor be placed (measured from the first man) on top of the beam? Show complete solution.A crane boom which weighs 200 lbs and which is 10 feet long is supported so that it makes an angle of 50° with the supporting wall and so that the rope makes an angle of 70° with the wall. If a load of 100 lbs is hung on the end of the boom, what tension occurs in the rope and what thrust does the support exert on the lower end of the boom? Ps. Please include Given, Req'd, Formula, Figure, Free body diagram, and Solution