Rate of change of the body position {\bf r}(t) with respect to a frame of reference, and is a function of time t:
| (1) | { \bf v}(t) = \frac{d {\bf r}}{ dt} |
Rate of change of the body position {\bf r}(t) with respect to a frame of reference, and is a function of time t:
| (1) | { \bf v}(t) = \frac{d {\bf r}}{ dt} |