Final answer:
An external force is a force generated from outside the system of interest that acts on an object within the system.
Step-by-step explanation:
An external force is defined as a force generated outside the system of interest that acts on an object inside the system. This means that the force does not originate from within the system, but rather comes from an external source. For example, if we consider a person pushing a box, the force exerted by the person is an external force acting on the box.
Therefore, the statement "True-An external force is defined as a force generated outside the system of interest that acts on an object inside the system" is correct.