4.12 Power Lab.docx

# 4.12 Power Lab.docx - Trial Weight(lb Height"Vertical...

• Lab Report
• 2

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Trial Weight (lb) Height "Vertical Rise" (ft) Time (s) Increase GPE (ft*lb) Power (ft*lb/s) Power (hp) A 190 5.83 4.37 1107.7 ft lbs 253.5 ft lbs/s .49 hp B 125 5.83 5.27 728.75 ft lbs 138.3 ft lbs/s .25 C 165 6.83 5.78 961.95 ft lbs 166.42 ft lbs/s .3 Calculations: Trial Increase GPE Power (ft*b/s) Power (hp) A B C Questions: 1. Many people confuse the terms energy, work, and power. Explain how they are alike and how they are different.

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2. Which of the following would be a likely value for one student’s horsepower in this lab? A. 0.5 HP B. 2.0 HP C. 50.0 HP D. 150 HP E. 200 HP 2. If you run up the stairs (and don’t fall) which of the following would be true? A. You would not have followed the directions. B. The work you did would be more than the work done when you walked
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• Winter '16
• DR. NEJAT

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