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When we drive a car we usually describe our motion in terms of a speed or velocity. A speed limit, such as 60 miles/hr, is a speed. When runners or joggers describe their motion, they often do so in terms of a *pace* — how long it takes to go a given distance. A 4-minute mile (or better, "4 minutes / mile") is an example of a pace.

- Express the speed 60 mi/hr as a pace in minutes/mile.
- I walk on my treadmill at a pace of 17 minutes/mile. What is my speed in miles/hour?
- If I travel at a speed,
*v*, given in miles/hr, what is my pace,*p*, given in minutes/mile? (Write an equation that would permit easy conversion.)

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Page last modified September 30, 2002: G03