In the case of a hollow ball, the center of gravity is also at the center, but it is not in the material. When considering a solid ball, such as a billiard ball, it is obvious the center of gravity is the center of the ball and in the material that makes up the object. The center of gravity of an object does not have to be in the material of the object (Image C). While the concept of an object's center of gravity is something many of us feel confident in understanding, do you know how to figure out the center of gravity on an odd-shaped object? What about something like a truck, considering the weight of the engine, axles, and loaded or unloaded trailer? What is the Impact of a Truck's Center of Gravity?
The two rear axles on the tandem-drive truck are limited either by axle capacities or legal weight restrictions to 17,000 lbs. The rear axle on the single-drive truck is limited by the axle capacity or legal weight restrictions to 20,000 lbs. Both trucks in Image A have a front axle rated at 12,000 lbs., limiting the weight on those axles.
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