Question
What kind of speed is registered by an automobile speedometer: average speed or instantaneous speed?
Step 1
Speed is the rate of change of distance with respect to time. Mathematically, it is represented as $v = \frac{\Delta d}{\Delta t}$, where $v$ is the speed, $\Delta d$ is the change in distance, and $\Delta t$ is the change in time. Show more…
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