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Do You Have The Horsepower? |
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| #1. "find your weight in pounds and convert to kilograms" (1 pound = .45kg) | ||
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#2. "calculate the force" Force(N) = Mass(kg) X Acceleration(9.8m/s2) |
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#3. "measure the height of each stair (in cm) and multiply by the total number of stairs" (convert the cm into m) |
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| #4. "calculate the work" Work(J) = Force(N) X Distance(m) | ||
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| #5. "measure the time (in seconds) it takes to climb the stairs" | ||
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| #6. "calculate the power" Power(J/S or Watts) = Work(J) / Time(S) | ||
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| #7. "calculate the Horse Power" 1 HP = 746 Watts | ||
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Extra Credit! If you have a little mass, you can always cheat! |
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| Mr. Logan's Data: |
| "The Perfect Blend of Mass & Speed" |
| $1 to any students who can beat my Horse Power |
| 205 lbs |
| #1. Mass(kg): 205 lbs X .45 kg/lbs = 92.3 kg |
| #2. Force(N): 92.3 kg X 9.8 m/s2 = 905N |
| #3. Distance(m): 17.5cm X 24 Stairs = 420cm or 4.2 m |
| #4. Work(J): 905N X 4.2m = 3801J |
| #5. Time(s): 3.6 seconds |
| #6. Power(W): 3801J / 3.6s = 1056W |
| #7. Horse Power: 1056W / 746W/HP = 1.42HP! |