ELIF: Speedometer vs GPS/SatNav

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Can someone explain to me why my vehicle speed according to my speedometer and my speed according to my GPS/SatNav are out of sync by about 3 km/h? And which is more accurate? Thanks in advance.

In: Physics

4 Answers

Anonymous 0 Comments

A speedometer is connected directly to your car and is more accurate. With sattelite it’s basically guessing where you’re at by radio and stuff

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