Final answer:
Contact force involves physical contact between objects, like friction.
Explanation:
Contact force: A force that is a result of physical contact between two objects. Friction is an example of a contact force, as it requires direct contact between the surfaces of objects to oppose motion.Non-contact forces, such as gravitational and electrostatic forces, act over distances without the need for physical contact.
Learn more about Contact and non-contact forces here:
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