Third Equation of Motion (v² = u² + 2as)
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v² = u² + 2as
What each symbol means
| Symbol | What it stands for |
|---|---|
| a | Constant acceleration (m/s²) |
| s | Displacement along axis (m) |
| u | Initial speed (m/s) |
| v | Final speed magnitude along axis (m/s) |
When to use this
Constant straight-line acceleration; v and u are components along same axis.