# What is another name of first law of motion?and why is it given that name?thank you so much

Jun 23, 2018

#### Explanation:

The first law of motion is often refereed as $\textcolor{red}{\text{Law of Inertia}}$

Inertia is the property of a body by which it resists to be in its position of rest or of motion.

The first law also says that i.e.

An object at rest stays at rest and an object in motion stays in motion until and unless it is moved by an external unbalanced force.

Thus as the definition of inertia defines the first law of motion,
so the first law of motion is called as Law of Inertia.

Here is a video to explain the 1st law of motion:-