does a car speedomater measure speed, velocity, or both?

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help! :)

2007-09-11 15:07:34 · 4 answers · asked by itskelc 1 in Science & Mathematics ➔ Physics

Speed. It measures the wheel's rpm directly. Speed is inferred assuming the factory original wheel's diameter.

2007-09-11 15:19:00 · answer #1 · answered by Dr. R 7 · 0⤊ 0⤋

Technically, just ground speed. Both speed and direction are required to define velocity in the true mathematical sense.

2007-09-11 15:16:35 · answer #2 · answered by Clint D 2 · 0⤊ 0⤋

Speed.

2007-09-15 13:29:35 · answer #3 · answered by johnandeileen2000 7 · 0⤊ 0⤋

It measures speed as velocity is a vector whose magnitude is speed

2007-09-11 15:16:19 · answer #4 · answered by santmann2002 7 · 0⤊ 0⤋