Newton's 3 Laws By Ena Wilson

Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.

Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced.

Newton's third law is for every action, there is an equal and opposite reaction.

Physics is the branch of science concerned with the nature and properties of matter and energy. So with everything being stated above the next section is going to show you examples and directions of each law.

An object will remain at rest unless acted upon by external force

Another name for Newton's first law is The Law Of Inertia. If balanced forces act on an object it doesn't accelerate or change direction. This Means it doesn't change its velocity and it doesn't have momentum. Velocity is the speed of something in a given direction.

For example if you slide a hockey puck on ice, eventually it will stop, because of the friction on the ice. It will also stop if it hit a players stick or goal post.

The behavior of objects for which all existing forces are not balanced.

The more mass the object has the more net force has to be used to move it. The formula to a math problem for this law would be, force = mass * acceleration.

If you use the same force to push a truck and a push a car, the car will have more acceleration than the truck, because the car has less mass. The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

Every action, there is an equal and opposite reaction

Every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.

When you jump off a small rowing boat into water, you will push yourself forward towards the water. The same force you used to push forward will make the boat move backwards.

If one object A exerts a force FA on a second object B, then B simultaneously exerts a force FB on A, and the two forces are equal in magnitude and opposite in direction: FA = −FB.

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