Equations · equation
Work
Mechanics · 1829
- Equation
- W = F · d = ∫ F · ds
- Field
- Mechanics
- Year
- 1829
Symbols
W work, in joules · F force · d displacement, or ds a step along the path · F · d the dot product: only the component of force along the motion counts
Significance
Force times the distance moved along it. Carry a suitcase across a level floor and you do no work on it, however tired you are; lift it a metre and you do. Coriolis gave the quantity its name and its ½mv² partner in 1829. It is what a heat engine delivers, what a pulley system trades force against, and what an integral of force along a path always means.
Referenced by
equation
skill
Open on the Equations shelf — the interactive card, the filters, and everything alongside it.