Determine the force in cored AB 30° A B 800 lb/ft -15 ft- -15 ft- Your answer
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Q: Determine the force in cored AB 30° A В 800 lb/ft -15 ft- -15 ft Your answer
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- The 12-ft wide quarter-circular gate AB is hinged at A. Determine the contact force between the gate and the smooth surface at B due to water pressure acting on the gate. Use =62.4lb/ft3 for water.Repeat Prob. 4.152 assuming that the 400-kN force is applied at O instead of L.One side of the container has a 03-m square door that is hinged at its top edge. If the container is filled with water, determine the smallest force F that must be applied to the bottom edge of the door to keep it closed.
- The cylindrical water tank with R = 10 ft and H = 1.6 ft has thin steel walls of uniform thickness and weighs 18000 lb when empty. Determine the depth of the water h for which the center of gravity G of the tank plus water will be located at the surface of the water. For water, use =62.4lb/ft3.The center of gravity of the 850-N man is at G. If the man pulls on the rope with a 388-N force, determine the horizontal distance b between the man's feet and G.The properties of the unequal angle section are Ix=80.9in.4,Iy=38.8in.4, and Iu=21.3in.4. Determine Ixy.
- Find the elevation h (km) where the weight of an object is one-tenth its weight on the surface of the earth.Determine the force F required to pull up the 3.54m stopper from the drain of a sink if the depth of water is 10 in. Use =0.036lb/in.3 for water and neglect the weight of the chain.The plane region A is submerged in a fluid of weight density . The resultant force of the fluid pressure on the region is R acting at the point C (called the pressure center) located at the distance h below the surface of the fluid. Show that R=Qa and h=Ia/Qa, where Qa and Ia are the first and second moments of A about the axis a-a.
- The 500-kg load on the hydraulic lift shown is to be raised by pouring oil (? = 780 kg/m3) into a thin tube. Determine how high h should be in order to begin to raise the weight.Show the derivation of the girth and longitudinalstresses of the thin-walled cylindrical container shownbelow. Say p is the internal pressure, d is the insidediameter of the container, and t is wall thickness.Find a) the total force on gate AB in KN and b) the position of the center of pressure in m with respect to the bottom of the pond. Assume that the gate is 8 feet wide, that 1ft = 0.3048m, and that 1PSI = 6897.1 Pa