1. does the speedometer of a car read average speed or instantaneous speed? how do you know?
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1. does the speedometer of a car read average speed or instantaneous speed? how do you know?
2. if the speedometer of your car reads a constant speed of 40km/hr, can you say 100% for sure that the car has a constant velocity? explain your answer.
3. what two controls on a car cause a change in speed?
4. what control causes a change in velocity?
5. what is the acceleration of a car that travels in a straight line at a constant speed?
6. describe a situation in which you can accelerate even though your speed doesn’t change.
7. acceleration is a change in over time.
Answers: 3
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