Rusk, Rogers D. Formerly, Department of Physics, Mount Holyoke College, South Hadley, Massachusetts.
- Linear velocity
- Angular velocity
- Combined velocities
- Related Primary Literature
- Additional Reading
The time rate of change of position of a body in a particular direction. Linear velocity is velocity along a straight line, and its magnitude is commonly measured in such units as meters per second (m/s), feet per second (ft/s), and miles per hour (mi/h). Since both a magnitude and a direction are implied in a measurement of velocity, velocity is a directed or vector quantity, and to specify a given velocity completely, the direction must always be given. The magnitude only is called the speed. See also: Speed
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