Newton’s Laws of Motion Dynamic dynamics and unexpected returns

Sir Isaac Newton Determined many physical laws based on mathematics. His book, Principia, revolutionized the fields of both science and mathematics He did a great job of explaining effects that seemed to have no causes

Newton’s First Law of Motion Inertia An object at rest will remain at rest, and an object in motion will remain in motion unless acted upon by an outside force –Dependent on mass –Inherent property of matter

Newton’s Second Law of Motion Force equals mass multiplied by acceleration F = ma –Force is any push or pull that can affect motion –Mass in kg, acceleration in m/s 2 –Newtons: 1N = 1kgm/s 2

What would the net force be if two players kick a soccer ball from opposite directions according to the diagram? N, to the left N, to the right 3. 0 N N, upwards

Newton’s Third Law of Motion For every action, there is an equal and opposite reaction –These forces act on two different objects, so they are not balanced forces

The Big “Mo” Momentum is the product of an object’s mass multiplied by its acceleration. p = m v kgm/s = kg m/s

Law of Conservation of Momentum Momentum can not be created or destroyed under normal circumstances Momentum can be changed from one form to another –Total momentum before a change must equal total momentum after a change Ex. truck of gravel coming to a stop, pieces of a dropped light bulb

Law of Conservation of Momentum Formula m 1 v 1 +m 2 v 1 = m 1 v 2 +m 2 v 2