Newton’s Three Laws of Motion

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                                Newton’s Three Laws of Motion

Newton’s three laws of motion are used when dealing with anything that moves.

If we ask what causes an object to speed up?

Newton answers this question as his first law of motion. This law states that an object with constant position or constant velocity will remain at that position or velocity unless acted upon by a net external force. First law is also known as Law of Inertia.

We know that forces cause acceleration than we are wondering how much acceleration an object gets from a certain force.

This question is answered by second law of motion. It states that when a force acts on an object, it will cause the object to accelerate. This means that if you want to speed up an object a certain amount, you need to adjust the force depending on the mass of the object. The larger the mass the greater the force will be required.

The third law of motion states that for every action there is an equal and opposite reaction. It means pushing object causes that object to push back against you. Forces are found in pairs. This law describes what happens to a body when it exerts a force on another body.

These three laws of motion were introduced in 1687 in his book Philosophiae Naturalis Principia Mathematica or commonly known as The Principia.