Does the law of inertia pertain to moving objects, objects at rest, or both? Support your answer with example

The law of inertia pertains to both objects at rest and objects travelling in uniform motion (constant rate of motion so acceleration = 0).

ie of an object at rest: A person pushes a building with as much force as possible. The building is at rest and doesn’t move due to its inertia.

ie of an object travelling in uniform motion: An apple is thrown out of a car window. The apple bounces and moves on the ground after it is thrown out the window because of its inertia.

Hope this helps! :)