न्यूटन का गति का पहला नियम

Newton's first law states that an object naturally moves in a straight line at a constant speed, and will keep doing so unless something acts upon it to change that motion. This law matters because it established the fundamental principle that motion itself doesn't require a cause—only changes in motion do—which became a cornerstone of how we understand physics.

AI-generated from the Wikipedia summary — may contain errors.