What are the forces that act between objects?
Force between objects can be classified as
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Contact force
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Action at a distance
Contact force happens when the two objects are having physical contact with each other. Examples of contact force are frictional force, air resistance, and tensional force.
Action at a distance force happens when the two objects do not have any physical contact with each other. Examples of action at a distance force are gravitational force, electrical force and magnetic force.