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mechmotum / ollie-optimization

Optimal control and parameter optimization for a maximal height ollie problem
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Use of speed vs velocity #37

Closed brocksam closed 11 months ago

brocksam commented 1 year ago

I was always taught that speed = scalar quantity and velocity = vector quantity. So if we are not referring to a quantity that has a vector component then we should use speed.

E.g.

"The first two introduce $\psi_1$, a slack variable representing the magnitude of the relative speed between the foot and the skateboard $\dot{s}_1$."

moorepants commented 1 year ago

I agree. speed = scalar, velocity = vector

moorepants commented 11 months ago

I just scanned all uses of velocity and speed in the paper and it seems good.