Equations
Work-energy theorem
Energy · id work_energy_theorem
W = \frac{1}{2} m v^2 - \frac{1}{2} m v_0^2
| Symbol | Quantity | Unit | Meaning | Usual range |
|---|---|---|---|---|
W | net work | J | Net work done on the object | 0 to 1e+12 |
m | mass | kg | Mass of the object | 0.001 to 1e+07 |
v | final speed | m/s | Speed after the work is done | 0 to 1000 |
v0 | initial speed | m/s | Speed before the work is done | 0 to 1000 |
Assumptions
- Point mass or pure translation
Valid when
- Speeds far below the speed of light
Found by
Questions with these words retrieve this equation: work, energy, kinetic energy, speed up, net work, work-energy.
Source
OpenStax University Physics Volume 1, Chapter 7 (reference; entry written by the project). License: MIT. Entry confidence: 0.99.