Question

what is the law of inertia?
objects in motion or at rest will always stop.
force is equal to mass and acceleration.
energy can never be created or destroyed.
objects in motion or at rest will remain that way unless an external force is applied.

Explanation:

The Law of Inertia, Newton's first - law of motion, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Answer:

Objects in motion or at rest will remain that way unless an external force is applied.