Acceleration is the rate of change of an object's velocity over time. It is a vector quantity, meaning it has both magnitude and direction.
Acceleration can be calculated by dividing the change in velocity by the change in time. The formula for acceleration is a = (vf - vi)/t, where a is acceleration, vf is final velocity, vi is initial velocity, and t is time.
The unit of acceleration is meters per second squared (m/s^2). This unit represents the change in velocity per second.
Positive acceleration occurs when an object's velocity is increasing, while negative acceleration (also known as deceleration) occurs when an object's velocity is decreasing. An object with a constant velocity has an acceleration of 0.
Acceleration is directly proportional to force, as described by Newton's Second Law of Motion. This means that the greater the force applied to an object, the greater its acceleration will be. Similarly, the smaller the force, the smaller the acceleration.
