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Answers
I thik this is my suggestion internal means mechanical force and external means muscular force please verify the proper answer i. hope you like my suggestion thanks
Answer:
Internal forces are the forces acting amongst the particles of the system. For example , in an atom , the intermolecular forces are the internal forces. External forces are the forces acting in the system from the sources that is outside the system. External forces are forces caused by external agent outside of the system. Internal forces are forces exchanged by the objects in the system. To determine what part should be considered external and internal, mechanical system should be clearly defined. For our purposes, we will simply say that external forces include the applied force, normal force, tension force, friction force, and air resistance force. And for our purposes, the internal forces include the gravity forces, magnetic force, electrical force, and spring force. Examples of external forces include the force applied to the system, air resistance of an object, force of friction, tension and normal force. Internal forces include the force of gravity, spring force, and magnetic and electrical field forces. Forces are either internal or external. Internal forces are those which affect the e-business from within the business, associated with the decisions and actions taken by it. External factors, on the other hand, are those factors which are not under the control of management and affect e-business plans outside the organization such as competitors.