Velocity is position vector derivative

Instantaneous velocity is the derivative of the body’s position vector w.r.t. time.

Notes:

  1. Also see the scalar counterpart of this law.

Links:

  1. Wikipedia — Velocity.

time

time.

Symbol:

t

Latex:

\(t\)

Dimension:

time

velocity

Vector of the body’s velocity as a function of time. Also see speed.

Symbol:

v(t)

Latex:

\({\vec v} \left( t \right)\)

Dimension:

velocity

position_vector

Vector of the body’s position as a function of time. Also see euclidean_distance.

Symbol:

d(t)

Latex:

\({\vec d} \left( t \right)\)

Dimension:

length

law

v(t) = Derivative(d(t), t)

Latex:
\[{\vec v} \left( t \right) = \frac{d}{d t} {\vec d} \left( t \right)\]