slug·ft/s
slug foot per second
Momentumexact by definition
The slug foot per second is the coherent momentum unit of the US customary gravitational system, and it is exactly equal to the pound-force second, 4.4482216152605 newton seconds. That identity is not a coincidence: the slug is defined as lbf·s²/ft, so multiplying it by ft/s gives lbf·s back.
Watch out: The pound foot per second already in the catalog is a different unit, built on the pound of MASS, and is 32.174 times smaller. Both are legitimate and they are 3200 percent apart.
| 1 slug·ft/s | 4.4482216 kg·m/s |
Solvers that use momentum