Which better predicts Horsepower- weight or speed

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SUMMARY

The discussion centers on determining whether weight or speed is a better predictor of horsepower in a vertical motion scenario. It is established that horsepower can be calculated using the formula P = Fv, where F represents weight (in Newtons) and v represents speed (in meters per second). Both factors are essential, as they directly influence the resulting horsepower, which is ultimately expressed in watts before conversion to horsepower. The conclusion is that both weight and speed are equally important in predicting horsepower.

PREREQUISITES
  • Understanding of Newton's Second Law (Force = Mass x Acceleration)
  • Familiarity with the concept of horsepower and its conversion from watts
  • Basic knowledge of vertical motion physics
  • Ability to perform unit conversions between metric and imperial systems
NEXT STEPS
  • Research the relationship between mass, gravitational force, and horsepower calculations
  • Explore the physics of vertical motion and its implications on force and velocity
  • Learn about unit conversions, specifically from watts to horsepower
  • Investigate real-world applications of horsepower in various mechanical systems
USEFUL FOR

Physics students, mechanical engineers, and anyone interested in understanding the dynamics of horsepower in relation to weight and speed.

Oscar Wilde
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Which better "predicts" Horsepower- weight or speed

1. This problem involves vertical motion on a flight of stairs, the force of friction is to be ignored. I just can quite put my thumb on whether speed or weight will better predict the resulting horsepower, given that weight (mass times gravitational field strength) times velocity (meters per second) is equivalent to horsepower. Can someone help me please?



2. Weight being (N) and speed being (m/s)


3. As I explained I cannot find which one would better "predict" HP, since both are direct factors. Perhaps would that make them equal?
 
Last edited:
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P = Fv, so you need BOTH the force (weight) and the velocity.
Note that this will come out in units of watts if you use the metric system. You'll have to look up the conversion to horsepower.
 

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