Acceleration is alluded to as the expansion in speed of an item for each unit of time. Though, retardation is the exact inverse of speed increase or the lessening of speed per unit of time. Speed increase can be positive(+),0,or negative(- ).
Negative of speed increase is known as hindrance. Negative Acceleration is called Retardation, or Deceleration. Instances of impediment movement are: 1) Velocity of the vehicle diminishes when the brake is applied. The SI unit of hindrance, it is only an oppositely coordinated speed increase, is m/s^2.
Final Answer: Hence, Acceleration is referred to as the increase in velocity of an object per unit of time. Whereas. Retardation is just the opposite of acceleration or the decrease of velocity per unit of time.
