223. The block shown in Fig. P-223 is acted.upon by its weight W horizontal force Q 3 600 lb, and the pressure Pexerted by the inclined plane. The result- Q=G00 lb ant Rof these forces is up and parallel to the incline thereby sliding the block up it. De- Eermine P and R. Hint: Take one axis parallel to the incline. 200 lb, a %3D %3D Ans. R= 293 lb %3| 30 15

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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.