# Newton's Three Laws of Motion

After Kepler came up with HOW the planets move, Sir Isaac Newton came up with the WHY they move in the observed fashion. What are Newton's Three Laws of Motion?

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Newtons laws are:

1-Every object in a state of uniform motion (constant velocity in magnitude and direction) tends to remain in that state of motion unless an external force is applied to it.

2-The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors having both magnitude and direction. This is kind of similar to the first law but more mathematical since it ...

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What are Newton's Three Laws of Motion is determined.

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