"One object has twice as much mass as another. The first object also has twice the inertia."
Here's why:
* Mass: Mass is the amount of matter in an object.
* Inertia: Inertia is the tendency of an object to resist changes in its motion.
The Relationship:
The more massive an object is, the more inertia it has. This means:
* It's harder to get a more massive object moving from rest.
* It's harder to stop a more massive object that's already moving.
In your example:
Since the first object has twice the mass of the second object, it will also have twice the inertia. It will be twice as hard to make it move or stop it.
