section_path: Description of objects and their motion/Kinematics/Acceleration
section_name: Acceleration
paragraph_text: Acceleration
  
  The acceleration, or rate of change of velocity, is the derivative of the velocity with respect to time (the second derivative of the position with respect to time):
  
  Acceleration represents the velocity's change over time. Velocity can change in magnitude, direction, or both. Occasionally, a decrease in the magnitude of velocity " v " is referred to as deceleration, but generally any change in the velocity over time, including deceleration, is referred to as acceleration.