What role does friction play in Newton’s Laws of Motion?

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Updated: 11-Apr-2025

Friction is an external force that resists motion, crucial in applying Newton’s Laws. According to the First Law, an object stays in motion unless acted upon—friction is often that acting force. It slows down or stops moving objects.

The Second Law incorporates friction into total force calculations. Without friction, walking, driving, or even holding things in place would be impossible. It’s both helpful (traction) and a challenge (energy loss) in real-world physics

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