State Newton's first law of motion. Also write its mathematical form.
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- Newton's first law states that a body stays at rest if it is at rest and moves with a constant velocity unit if a net force is applied on it. ... That is, when F = 0, v = u for whatever time, t is taken. This means that the object will continue moving with uniform velocity, u throughout the time, t.
- In other words, the state of motion of a body changes only on application of a net non-zero force. Newton's second law states that the net force applied on a body is equal to the rate of change in its momentum. Mathematically, ... Thus, we can derive Newton's first law of motion using Newton's second law of motion.
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