A uniform beam of length 1.0 m and mass 10 kg is attached to a wall by a cable as shown.  What is the tension in the cable? What are the horizontal and vertical forces at the point where the wall and beam meet?

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A: Taking moment about P 1500g×10+15000g×15=FB×20FB=1500+1500×152g=1500×8×9.8=117600 N

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A: weight = W = 380 N angle = 27

Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.