The center of gravity of a circular disk of sheet metal is
A)at the center of the disk.
B)midway between the center and the outside.
C)two-thirds of the way between the center and the outside.
D)impossible to predict without knowing the metal density.

Question

Quizplus · Accepted Answer

The center of gravity of a circular disk of uniform density is at the geometric center of the disk, which is also the same as the center of mass of the disk. This means that the weight is evenly distributed around the center of gravity, making it easy to balance the disk.

The Center of Gravity of a Circular Disk of Sheet