Newton's Laws

All three of Newton's laws apply to everyday life. Newton's first law of motion states that an object at rest will remain at rest and an object in motion will remain in motion at a constant velocity unless acted upon by an unbalanced force. To illustrate this, when a car is moving forward and is then suddenly hit by a car from behind, your body is thrown forward. This is because it was acted upon by an unbalanced force. Newton's second law shows how force, mass, and acceleration are related. Force= Mass x Acceleration. For example, most of the time when you go to the grocery store you are pushing a cart. When you first get the cart it is very light and does not take much strength to push it. This is because it has no mass. As you start to fill it up with groceries, the mass gets heavier and the cart needs more acceleration to make it go the same speed as when the cart was empty. Lastly, Newton's third law of motion demonstrates that for every action there is an equal and opposite reaction. When a bird is flying it exerts force into the air. The air pushing back on the birds wings propels the bird forward.