Q118
General SciencePhysics
What do we see at speedometer of a car?
- a.Average speed
- b.Average velocity
- c.Instantaneous speed
- d.Instantaneous velocity
Answer: (C) Instantaneous speed
A speedometer shows how fast the car is moving at each moment, which is instantaneous speed. It does not show direction, so it is not velocity, and it does not average over a trip.