Newton's Laws of Motion
By Haley Fitzpatrick
Newton's First Law
Objects keep doing what they are doing unless disrupted by an outside force.
The bowling pins are at rest and won't move unless disrupted by the bowling ball which then will make them move which is inertia.
The person in this photo is driving the car.
He crashes into a brick wall. The car stops it's movement suddenly.
The passengers are showing Newton's First Law. Objects in motion tend to stay in motion unless disrupted by an outside force. The passengers will tend to keep moving once the car stops so suddenly. This is why there are seatbelts in every car to help resist the urge to stay in motion.
Newton's Second Law
The force on an object is equal to it's mass times it's acceleration.
In the photo above the car has a mass of 1000 kg and it's acceleration is 8 m/s squared. The force of this object would then be 8,000 Newtons.
The mass of the elephant is greater than the force that the person is giving therefore the mass is resisting the force and has no acceleration.
The air is pushing out of the balloon to the right so the reaction to that is the balloon moving forward to the left.
The person pushes a force down on the ball.
The ball is still moving down towards the ground with the same force that the person put on it.
The action is the ball hitting the floor with the same force. For every action there is an equal and opposite reaction. The reaction is the ball coming back up with the same force it went down with.