I've plugged my values into the drag equation (en.wikipedia.org/wiki/Drag_equation), and it returns 17696 somethings. Newtons? Newton meters? Joules? Kilograms?

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## Answers (2)

Drag force can be measured in any units of force. What you got, depends on what units you used for the density, speed, and area.

You claim your density is unitless, but I know better. The density of air is 1.2 kg/m³.

Your speed is in km/h.

I have no idea what your area is measured in. Let's guess square meters.

Then your drag force is in

(kg/m³)(km/hr)²(m²)

which yields a force in kg-Mm²/h²

an extremely unusual unit of force, but nonetheless valid.

If you'd like to get a unit that other people will recognize, I suggest you convert your speed to m/s, and make sure your area really is in m². Then you'll get

kg-m²/s²

which is a Newton.

Force is always Newtons (or a scale variant, such as kiloNewtons - did you get the decimal point in the right place?)