Quote:
Originally Posted by ZDan
You, are doing it wrong. You don't need to apply forces, or "unit vector" gravity in any directions, or sum moments at all to find the center of mass. Which, again, *is* the center of gravity in a constant gravitational field (which is the only way any of these cars will be driven).
Wikipedia references that are misunderstood and wrongly applied are no substitute for knowing what the hell you are talking about. Clearly you do not.
Also, it's "rigid body", not "ridgit" or "ridget".
Now repeat after me: A car's center of gravity *is* the same as it's center of mass, and it *does* change (move) if the car is lowered.
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Are you really that stupid. You just describe what I've said and what Wikipedia said.
When calculating COM, gravity does not come into play because its a relationship of volume and density distribution.
When you calculate COG, you need the sum of moment of each respective volume and density and apply gravity.
I never said to calculate COM while applying gravity.
It is you who clearly have a half baked understanding of both COM and COG. Also put on your critical thinking cap before posting again. Dispute what you believe, you really don't know what you are talking about