Question : Newton's first law of motion is also known as_________.
Option 1: law of magnitude
Option 2: law of reaction
Option 3: law of inertia
Option 4: law of masses
Correct Answer: law of inertia
Solution : The correct answer is the law of inertia .
Newton's first law is also known as the law of inertia. The first law of Newton states if a body is at rest or moving at a constant speed in a straight line, then it will remain at rest or keep moving in a straight line at constant speed unless or until it is acted upon by a force. It means an object will not change its motion unless a force acts on it.
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