Key Equations
4.2 Newton's First Law of Motion: Inertia
| Newton's first law of motion | or |
4.3 Newton's Second Law of Motion
| Newton’s second law of motion | or |
| Newton’s second law of motion to solve acceleration | |
| Newton’s second law of motion to solve weight |
4.4 Newton's Third Law of Motion
| normal force for a nonaccelerating horizontal surface | |
| tension for an object at rest |