EX7.1-PowerofCyclist-aud

EX7.1-PowerofCyclist-aud - Lesson 7 Example 7.1 Cyclist...

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Lesson 7 Example 7.1 Cyclist Power Lance Armstrong Power
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3/114 The cyclist shown along with his bike weigh 200 lbs. What power P is the man developing in riding up a 5% grade at a constant speed of 15 mi/hr. What is your first step? EX7.1 Power of Cyclist Solution: Problem Type: Find: Given: W=200 lbs, v=15 mph, Grade = 5% P: Power output of rider to maintain constant speed. Work and Power Write out the Power Relationship Assume Drag Force and Rolling Resistance are negligible 0 0 , 0 = = = r f Drag R R F Write an Expression for the velocity in ft/sec Reflection: 0.4 Hp is a relatively high output and not easy for the average human to maintain, but certainly possible for a short duration.
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EX7.1-PowerofCyclist-aud - Lesson 7 Example 7.1 Cyclist...

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