Explanation : This is inertia of direction. It is the ability of body to be in a state of direction of motion. Inertia of direction is non-existent apply to a velocity. In other way we can say that if a body moves in a particular direction under the action of a force and if the force is removed then will continue to move in the same direction unless stopped under the action of another opposing force. For a body at rest it under the inertia of rest whereas inertia of motion is for bodies in motion. ....Read more