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# Center Mass

A coordinate system for determining center of mass:

The position of center mass can calculated as

Rx = (ma xa + mb xb) / (ma + mb)

= (mb / (ma + mb)) d                                (1)

where

Rx = x-coordinate for the center of mass

## Related Topics

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The relationships between forces, acceleration, displacement, vectors, motion, momentum, energy of objects and more.

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### Area Moment of Inertia - Typical Cross Sections I

Typical cross sections and their Area Moment of Inertia.

### Area Moment of Inertia - Typical Cross Sections II

Area Moment of Inertia, Moment of Inertia for an Area or Second Moment of Area for typical cross section profiles.

### Cantilever Beams - Moments and Deflections

Maximum reaction forces, deflections and moments - single and uniform loads.

### Center of Gravity

A body and the center of gravity.

### Center of Gravity and Buoyancy

Stability - the center of gravity vs. the center of buoyancy.

### Force

Newton's third law - force vs. mass and acceleration.

### Mass Moment of Inertia

The Mass Moment of Inertia vs. mass of object, it's shape and relative point of rotation - the Radius of Gyration.

### Mass vs. Weight

Mass vs. weight - the Gravity Force.

### Torque or Moment of Force - Online Converter

Torque or moment - the tendency of a force to rotate an object.

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