Question: A cop pulls you over and asks what speed you were going. Well, officer, I cannot tell a lie: the speedometer read 4 108

A cop pulls you over and asks what speed you were going. “Well, officer, I cannot tell a lie: the speedometer read 4 × 108 m/s.” He gives you a ticket, because the speed limit on this highway is 2.5 × 108 m/s. In court, your lawyer (who, luckily, has studied physics) points out that a car’s speedometer measures proper velocity, whereas the speed limit is ordinary velocity. Guilty, or innocent?

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