JazzyPooh1 JazzyPooh1
  • 08-04-2015
  • Physics
Answered

How do you know that a speedometer tells you the instantaneous speed of a car?

Answer :

Kaitlyneer
Kaitlyneer Kaitlyneer
  • 08-04-2015

Because the speedometer responds directly and proportionally to acceleration (whether speeding up or breaking). If the speedometer displayed average speed it would not be directly affected by changes in speed due to acceleration
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