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Contact forces are types of external forces that occur when two objects physically touch each other and interact through direct contact.
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Normal Force: The normal force is a contact force exerted by a surface to support the weight of an object resting on it.
Tension Force: Tension force is a contact force that occurs when an object is being pulled or stretched by another object through direct contact.
Applied Force: An applied force is a contact force exerted on an object by another object or person.