It's the product of the angular velocity (how fast it spins—represented with the symbol ω) ... Gif: Rhett Allain. Really, you could easily take some measurements from this.

Instead of velocity we say, “angular velocity,” which measures how fast an object rotates. Finally, instead of momentum, we say “angular momentum.” Even though the terms are a little ...

With an angular velocity of 0.02328 radians per second, I get a ground speed of 116 m/s (260 mph). This means the plane is moving with the same velocity (but in the opposite direction).