Showing 2171 to 2180 of 2573 Questions
  • The platform scale consists of a combination of third and first class levers so that the load on one lever becomes the effort that moves the next lever. Through this arrangement, a small weight can balance a massive object. If x = 450 mm, determine the required mass of the counterweight S required to balance a 90-kg load,L.

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  • The platform scale consists of a combination of third and first class levers so that the load on one lever becomes the effort that moves the next lever. Through this arrangement, a small weight can balance a massive object. If x = 450 mm and, the mass of the counterweight S is 2 kg, determine the mass of the load L required to maintain th

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    146
  • The platform supports a load W. Determine the horizontal force P that must be supplied by the screw in order to support the platform when the links are at the arbitrary angle θ.

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    121
  • The platform truck supports the three loadings shown. Determine the normal reactions on each of its three wheels.Given:F1 = 380 lb b = 12 inF2 = 500 lb c = 10 in d = 5 inF3 = 800 lb e = 12 ina = 8 in f = 12 in

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    529
  • The polar moment of inertia for the area is IC about the z axis passing through the centroid C. The moment of inertia about the x axis is Ix and the moment of inertia about the y' axis is Iy. Determine the area A.Given:IC = 28 in4Ix = 17 in4Iy' = 56 in4a = 3 in

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    115
  • The polar moment of inertia for the area is Jcc about the z' axis passing through the centroid C. If the moment of inertia about the y' axis is Iy' and the moment of inertia about the x axis is Ix.Determine the area A.Given:Jcc = 548 × 106 mm4Iy' = 383 × 106 mm4Ix = 856 × 106 mm4h = 250 mm

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    123
  • The pole for a power line is subjected to the two cable forces of 60 lb, each force lying in a plane parallel to the x – y plane. If the tension in the guy wire AB is 80 lb, determine the x, y, z components of reaction at the fixed base of the pole,O.

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    463
  • The pole is subjected to the force F, which has components acting along the x, y, z axes as shown. Given the magnitude of F and the angles α and γ, determine the magnitudes of the components of F. Given: F = 80 N α = 60 deg γ = 45 deg

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    122
  • The pole is subjected to the force F which has components Fx = 1.5 kN and Fz = 1.25 kN .If β = 75o, determine the magnitudes of F and Fy.

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    318
  • The pole is subjected to the force F which has components F x = 1.5 k N and F z = 1.25 k N. If β = 75°, determine the magnitude of F and F y.

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    110