A force of 20 N is applied to a spanner as in Figure 3.. a. Calculate the moment created by this force around point B (at the nut) as a vector. b. Angles of the moment with the x, y and z axes; Calculate ?, ? and ?. c. When you evaluate this moment, should the applied force tighten or loosen the nut?

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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.