Acceleration

• Average acceleration can be calculated using the formula vf - vi / t, where vi is initial velocity, vf is final velocity, and t is time taken to travel from one point to another.
• The SI unit of acceleration is meters per second squared (m/s^2).
• When objects are dropped or thrown vertically upwards, they experience free fall with acceleration due to gravity.
• The equation for calculating distance travelled when an object has constant acceleration is s = ut + 1/2 at^2.
• Acceleration due to gravity (g) is approximately 9.8 m/s^2 on Earth's surface.
• Acceleration is the rate at which an object changes its velocity.
• In free fall, objects experience constant acceleration due to gravity.
• Inertia refers to an object's resistance to change in motion.
• Free fall refers to an object falling freely under the influence of gravity alone without any other forces acting upon it.
• According to Galileo's law of falling bodies, all objects fall at the same rate regardless of their mass.
• According to Newton's Second Law of Motion, force equals mass times acceleration (F=ma).
• Acceleration due to gravity on Earth's surface is approximately 9.8 m/s^2.
• Newton's Third Law states that every action has an equal and opposite reaction.
• Inertia refers to the tendency of an object to remain stationary unless acted upon by an external force.
• Instantaneous acceleration refers to the rate of change of velocity over a very short period of time.
• Newton's first law states that if there is no net force acting on an object, it will remain stationary or continue moving at constant speed in a straight line.