Building Momentum

[dunmatt]

Would you be open to a PR that adds Momentum (kg*m/s) to uom? If not, is there a recommended way of dealing with momentum?

Edit: same questions for Torque (Nm)

[iliekturtles]

I'd love PRs for momentum and torque. Let me know if you need any guidance to get started. NIST 811 appendix B9 has a number of units for torque. Momentum isn't listed so I suggest adding combinations of the most common si prefixes along with common non-si units (e.g. slug ft/s). Also see https://github.com/iliekturtles/uom/blob/master/src/si/mass_rate.rs for some good test examples.

[dunmatt]

Is torque going to run into a problem since it has the same base units as energy?

[iliekturtles]

Nope! Specify a new Kind for torque. See temperature interval and thermodynamic temperature for an example how to do this. I haven't done any research to see what a good kind name is. Perhaps just Torque. The new kind will likely want to implement all of the marker traits.

[dunmatt]

Oooh, I've never used a Kind before (although I have vague memories of being taught about them in grad school)... exciting!