Velocity
where
is the Position Vector and 
is the derivative with respect to time. Expressed in terms of theArc Length,
where
is the unit Tangent Vector, so the Speed (which is the magnitude of the velocity) is
See also Angular Velocity, Position Vector, Speed
- Trace (Group)
- Trace (Map)
- Trace (Matrix)
- Trace (Tensor)
- Tractory
- Tractrix
- Tractrix Evolute
- Tractrix Radial Curve
- Tractroid
- Transcendental Curve
- Transcendental Equation
- Transcendental Function
- Transcendental Number
- Transcritical Bifurcation
- Transfer Function
- Convergent Sequence
- Convergent Series
- Conversion Period
- Convex
- Convex Function
- Convex Hull
- Convex Optimization Theory
- Convex Polygon
- Convex Polyhedron
- Convolution