Question

What is law of innertia???

Answer 1

first law of motion is law of inertia
the objects in motion tend to be in. motion and objects in rest tend to be in rest until an external force is acted on the them.

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Answer 2

Inertia is the resistance, of any physical object, to any change in its velocity. This includes changes to the object's speed, or direction of motion.
An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces are upon them — and this aspect in particular is also called inertia.
The principle of inertia is one of the fundamental principles in classical physicsthat are still used today to describe the motion of objects and how they are affected by the applied forces on them.
Inertia comes from the Latin word, iners, meaning idle, sluggish. Inertia is one of the primary manifestations of mass, which is a quantitative property of physical systems. Isaac Newton defined inertia as his first law in his Philosophiæ Naturalis Principia Mathematica, which states:


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