highcenterofgravity

High center of gravity, or high CG, refers to a situation where the vertical position of a body's center of gravity is relatively high compared to its base of support. The center of gravity is the point where the body’s weight can be considered to act; in many objects under uniform gravity, it coincides with the center of mass. The height of the CG depends on how mass is distributed vertically and on the geometry of the object.

Stability is strongly influenced by CG height. When a body tilts, gravity produces a restoring or tipping moment that depends on the CG height and the width of the base of support. A higher CG generally increases tipping risk and can reduce dynamic stability in activities such as turning, accelerating, or braking. In vehicles and equipment, a lower CG improves rollover resistance and handling, while a higher CG may offer other advantages like better visibility or interior space.

Calculating CG height involves summing the product of each component’s mass and its vertical position, then dividing by the total mass. For continuous bodies, this becomes an integral. In practice, engineers and designers use measurements and modeling to determine CG and ensure it is appropriate for the intended use.

Managing a high center of gravity often involves lowering mass toward the base, widening the base of support, or adjusting weight distribution. Examples include modifying ride height, repositioning ballast, or redistributing components to enhance stability. Applications span vehicles, furniture, architecture, and sports equipment, where CG height affects safety, control, and performance.