Question

1. what is inertia?

Explanation:

Inertia is a fundamental concept in physics. It refers to the property of an object to resist changes in its state of motion. An object at rest will stay at rest, and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an external force. This is described by Newton's first law of motion.

Answer:

Inertia is the property of an object to resist changes in its state of motion.