Newton’s First Law states. “The velocity of an object will remain constant unless a net force acts on it.” It is often called the Law of Inertia.
What is Inertia?
All objects moving or not moving resist changes in motion
Objects in motion stay in motion. Objects at rest stay at rest.
Unless acted upon by an unbalanced force.
More Mass = More Inertia
The amount of inertia that an object has is dependent on the object’s mass. The more mass an object has the more inertia it has.