Week 2 - Rates of Change Subscribe Calculus is all about rates of change. Specifically, calculus focuses on instantaneous rates of change. Section 1.3 in your book talks about average rates of change and provides a formula (change in output / change in input). Average rates of change are used all the time in many different fields. Here's an example. To find the average efficiency of an electric vehicle, divide the number of watt hours used by the number of miles driven. eff = watt-hours mile Your assignment this week is to: 1) provide one example (with units) of an average rate of change, and 2) comment on the feasibility of measuring an instantaneous rate of change. Is it possible to measure an instantaneous rate of change? If it is, give an example. If not, why? Your example can be from any field. Physics, running, cycling, economics, biology, etc.