4.50 The homogeneous 18-kg pulley is attached to the bar ABC with a pin at B. The mass of the bar is negligible. The cable running over the pulley carries a tension of 600 N. Determine the magnitudes of the support reactions at A and C. 240 120 240 600 N B 96 40% 18 kg 600 N Dimensions in mm Fig. P4.50

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Loads and Reactive Forces

Loads are the external influences that a beam experiences under its working conditions. For instance, a beam may be subjected to shear loads, twisting loads, bending moment, and axial loads during its working conditions. Engineers primarily deal with beams and trusses in the civil engineering domain. Due to the influence of loads, it is very crucial to determine the induced stresses and deformation values. These values give an insight into the critical area of the beam that needs to be worked upon to make it fail-safe.