The barge shown supports the loads wi and w2. What is the length of the barge L so that the upward pressure q is uniform? For this problem, take wi = 145 kN/m, w2 = 290 kN/m, L1 = 3 m, L2 = 6 m, and L3 = 3 m. - L3- B C D E
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- A cylinder rests on a bar and a wall in the way indicated in the figure. The cylinder weighs 500 kgf and the bar 100 kgf. If all surfaces are smooth, determine the reactions at supports A and B of the bar.The frame of a machine is accelerated rightwards at 3/4 gravity as shown in the figure below, it carries a uniform angle ABC weighing 120 lbs which is braced by the uniform strut CD weighing 80 lbs and AE weighing 40 lbs. Determine the components of the pin pressure at C.The uniform bar AB weighing 240 lb is mounted as shown in the figure upon a carriage weighing 480 lb. The center of gravity of the carriage is at C midway between the wheels. If P = 180 lb and there is no frictional resistance at the wheels, find the value of R1
- Consider the force P applied at point A on the plate of the figure shown (image 1). Assuming that the weight of the plate is negligible, and that the horizontal force F, as well as the reactions Dy and Dx in the joint D balance the plate shown in the figure. Note: the x-axis is horizontal and the y-axis is vertical and both have their origin at point D. Data: P = 332N The next affirmative is true or false? If the plate had a weight of 332N (applied vertically downwards in the center of the plate), the module of F should be greater than 369.18N, so that it would still remain balanced in that position.Consider the force P applied at point A on the plate of the figure shown (image 1). Assuming that the weight of the plate is negligible, and that the horizontal force F, as well as the reactions Dy and Dx in the joint D balance the plate shown in the figure. Note: the x-axis is horizontal and the y-axis is vertical and both have their origin at point D. Data: P = 332N Which option is right? a) if the plate had a weight of 332N (applied vertically downwards in the center of the plate), the reaction Dy on the plate should be vertical downwards so that the plate still remained in balance in that position or b) if the plate had a weight of 332N (applied vertically downwards in the center of the plate), the reaction Dy on the plate should be vertical downwards so that the plate still remained in balance in that positionConsider the figure as shown. What force must be applied at point P to keep the structure in equilibrium? Determine the magnitude and direction angle relative to the positive x-axis. Assume the weight of the structure is negligible.
- Statics, Find the force in member BC, BE, and EF of the truss and state if the members are in Tension or Compression, given :P1 = 95 kN, P2=75 kN, P3=85 kN, L1=3 m, L2=5 m(Use positive values to indicate Tension and negative values to indicate Compression)Consider the force P applied at point A on the plate of the figure shown (image 1). Assuming that the weight of the plate is negligible, and that the horizontal force F, as well as the reactions Dy and Dx in the joint D balance the plate shown in the figure, choose the alternatives that are true. Note: the x-axis is horizontal and the y-axis is vertical and both have their origin at point D. Data: P = 332N If the plate had a weight of 332N (applied vertically downwards in the center of the plate), the reaction Dy on the plate should be vertical downwards so that the plate still remained in balance in that position. True or false?Consider the frame shown below (see Figure, smooth pins are connected at A and B). Determine the forces acting on members AE and BD (take the gravity g = 10 m/s2)
- The rigid bars AB and CD, as shown in the figure, are supported by pins at A and C and the two aluminum and steel rods. Determine the maximum force P that can be applied if its motion vertical is limited to 5mm. Ignore the weights of all members. The figure is in the attached image.The simplest truss consists of two rods and is loaded by the block. Given: block weight Q = 9,4 kN. Angle α = 31 degrees. Find: the algebraic (positive or negative) value (in kN) of normal force N1 in the rod 1, considering that N1>0 for tension and N1<0 for compression.The uniform bar AB weighing 240 lb. is mounted as shown in Figure upon a carriage weighing 480 lb. The center of gravity of the carriage is at C midway between the wheels. If P = 180 lb. and there is no frictional resistance at the wheels, find R1 and R2, and also the horizontal and vertical components of the pin pressure at A.