Kinematics

• Acceleration is a vector quantity that refers to the rate at which an object changes its velocity.
• The displacement of an object is equal to the difference between its initial position and final position.
• Speed is defined as the magnitude (or size) of velocity, while velocity has both magnitude and direction.
• Velocity is defined as the change in distance divided by time, or the speed with direction.
• Average speed is the total distance traveled divided by the elapsed time.
• Instantaneous acceleration can be calculated using calculus, while average acceleration can be found by dividing the change in velocity by the time taken.
• The SI unit for acceleration is meters per second squared (m/s^2).
• Velocity has both magnitude (speed) and direction, while speed only has magnitude.
• Displacement is the distance between the initial position and final position of an object.
• The velocity is the rate at which an object changes position.
• Acceleration is the rate at which an object's velocity changes.