Force of gravity/weight vecotr placement?

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The discussion centers on the placement of the weight vector in relation to a rectangular block when analyzing tipping under a horizontal force. It is established that the force of gravity vector should originate from the object's center of mass rather than the bottom of the object. This is because the center of mass accurately represents the distribution of weight and is crucial for determining the tipping point. Understanding this concept is essential for solving problems related to static equilibrium and rotational dynamics.

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GnG.Vike13
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we were doing a problem that involved pulling on a normal rectangular block with a horizontal force in class. at the point that it just barely starts tipping, we wanted to figure out the force required. i understood how to do that, but what puzzled me is the blocks weight/force of gravity vector placement. should it come form the object's center of mass, or the bottom of the object? and why? sorry, but this just made no sense to me at all.
 
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