Rice Lake Intercomp SW™ Deluxe Portable Vehicle Scale - Manual (Page 14)

SW Users
Rev G, February, 2000
14
CG (Center of Gravity)
Center of Gravity Examples
The center of gravity of an object, such as a car, is the point at which the object
balance if placed on a pivot point. In the diagram above the weights would
represent the weight applied by two tires of a car. If the two tires were the same
weight the center of gravity would be exactly in the middle. If one tire were
heavier the center of gravity would move toward the heavy tire.
There are three axis on a car: front to back, left to right, and up to down. The
center of gravity on the first two can be determined directly from the weight of
each wheel, the up to down, or vertical, requires that one end of the car be lifted;
it is addressed in the next section.
Center of Gravity
The CG calculation requires that you enter the axle width and the wheel base.
Make sure that the front tires are aligned straight forward before you measure
them. The axle width is from the outside of a left tire to the outside of a right tire.
The wheel base is from the middle of a front tire to the middle of a rear tire. If
the measurements are made according the above diagram the results are from
the marked reference point.