Final answer:
An object at rest with no unbalanced forces acting upon it is expected to remain at rest according to Newton's First Law of Motion, also known as the law of inertia.
Step-by-step explanation:
According to Newton's First Law of Motion, an object at rest will remain at rest unless acted upon by a net external force. This principle is also known as the law of inertia. Inertia is a property related to the mass of an object, which describes its tendency to remain unchanged in its state of motion. Therefore, if an object sits at rest with no unbalanced forces acting upon it, we expect the object to remain at rest. It will not move with a constant velocity, accelerate, or have its motion be indeterminable unless an external force is applied to it.