2R Mo The simple spoked system shown consists of a rigid wheel and four identical pretensioned spokes connected tangentially to the edge of the hub. The tension in each spoke is 300 N. Say the hub is subjected to a torque M, as shown. The spokes are steel and circular in cross-section with diameter d. Determine the tor- sional stiffness, that is the ratio of the torque Mo to the rotation of the hub (in radians). Assume small rotations. Take d = 2 mm, R = 40 mm, and b = 380 mm.

Q: 1) A straight hollow shaft is fixed at one end and free at the other end. The shaft is made of…

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Q: There is a beam as shown in the figure below, and the flexural stiffness of the beam section is…

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Q: A rigid bar AB, pinned at end A, is supported by a wire CD and loaded by a force P at end B as shown…

A: Given:  E =210 GPa  Displacement at B not more than 6mm Diameter of wire = 5mm   To Find: Maximum…

Q: Question The electric motor exerts 600 Nm torque on the aluminum shaft ABCD when it is rotating at a…

A: T = 600 Nm GBC = 16 GPa or 16000 MPa GCD = 12 GPa or 12000 MPa dBC = 30 mm

Q: The 20-mm diameter shaft is subjected to torques as shown. The shaft is made of steel with the…

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Q: For the frame shown above is constructed out of circular tubes for both the beam and column.  It has…

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Q: A В D 400 mm, 625 mm 1. The aluminum rod, AB (G = 27 GPa), is bonded to a brass rod BD (G = 39 GPa)…

A: Given:- The modulus of rigidity of aluminum rod AB = 27 GPa The modulus of rigidity of brass rod BD…

Q: The pin-connected rigid rods AB and BC are inclined at 0 the force P is applied, 0 becomes 32°.…

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Q: H.W.: A horizontal rigid bar AB is hinged at A and subjected to 80 kN load and 120 kN.m moment at C…

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Q: Q.1//The bar AD is considered to be absolutely rigid and is horizontal before the load of 200 KN is…

A: Solution: Given data: length of BF and CF =250 mm  Area of CF =400 mm2 Area of BE=200 mm2 For copper…

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A: Given data- Diameter of the solid segment 1 d1 = 41 mm= 0.041mDiameter of the solid segment 2 d2 =…

Q: The shaft shown consists of a steel tube (1) bonded to a brass core (2). The shear modulus of steel…

A: Given:Radius of brass core = 0.5 inchOuter radius of steel tube = 1 inchShear modulus of brass =…

System of Forces

A force is an external influence or agent that changes the state of a system. According to Newton's second law, the force applied to a body is proportional to the change in momentum of a body. Hence, whenever a force is applied to a body, its momentum changes. If the body is at rest, under the action of force, its state of rest changes to motion. In other words, the magnitude of the momentum of the body changes from zero to a measurable value. Similarly, if the body possesses some initial velocity, it has some associated momentum, the effect of force can cause the body to halt or come to rest, that is, the momentum reduces to zero.