The Point mass reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Point mass

A point mass is in physics an idealisation of a body whose dimensions can be neglected compared to the distances of its movement.

It therefore differs from an idealised rigid body, from the point of view of kinematics. It has no moment of inertia.

See also

• Centripetal force
• Schwarzschild metric
• Potential energy
• Pendulum
• Kinematics

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