PreCal

a car went 44 feet through an intersection in only 0.5 seconds. How fast was the car going in miles per hour?

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1. 44Ft/0.5s * 1mi/5280Ft * 3600s/h = 60 mi/h.

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2. Memorize this conversion factor:
60mph=88f/s

60mph/88fps *(44/.5)fps=60mph

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bobpursley

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