all block of mass M equals 2.25 kg is fired with initial speed of loss equals 6 m/s along a horizontal section of a frictionless track as shown in the top portion of this figure. The block that moves along the frictionless semi circle vertical track and radius are equals 0.5m. 1) Determine the force exerted by the track on the block at A 2) The bottom of the track consists of a horizontal section of 15 m with friction. Determine the coefficient of kinetic friction between the block and the bottom portion of the track if the block just makes it to point B before coming to rest

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Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.