(2) Inertia of motion Explanation: This is inertia of direction. It is the ability of body to be in a state of direction of motion for example sun holds planets in a fixed elliptical path .this is one of the examples of inertia of direction. Inertia of direction is nonexistent however inertia only apply to a body at rest or moving with a constant velocity. It is the property possessed by a body to resist change.