Answer:
Inertia is a property of matter that causes it to resist any changes in its state of motion. This means that an object at rest will stay at rest, and an object in motion will stay in motion, unless acted upon by an external force. The amount of inertia an object has depends on its mass - the greater the mass, the greater the inertia. This concept is often summarized in Newton's first law of motion, which states that an object will remain in its state of rest or uniform motion in a straight line unless acted upon by a net external force.
Step-by-step explanation: