1.6. Acceleration

Acceleration characterizes the rate of change of speed, i.e. change in the magnitude of the rate per unit of time.

Average acceleration vector . Speed ​​increment ratio by the span of time During which this increment occurred, expresses the average acceleration:

The vector, the average acceleration coincides in direction with the vector .

Acceleration, or instantaneous acceleration is equal to the limit of the average acceleration as the time interval tends to zero:

(1.13)

In projections on the corresponding axis coordinates:

or

(1.14)