The rate of change of velocity is called acceleration and the kind of motion is known as accelerated motion.
- Acceleration is defined as the rate of change of velocity with respect to time.
- Acceleration is a vector quantity, so it includes both magnitude and direction.
- Velocity is the rate at which displacement changes with time.
- Instantaneous acceleration is defined as the ratio of change in velocity during a given time interval such that the time interval goes to zero.