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akerkarprashant
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I Conversion factors derivation.
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The discussion focuses on the conversion formulas between the MKS and CGS systems for force and work, highlighting that 1 Newton equals 10^5 dynes and 1 Joule equals 10^7 ergs. It emphasizes the dimensional analysis of force and energy, where force is expressed as M L T−2 and energy as M L² T−2. Additionally, it addresses the conversion of CGS units, specifying that centimeters convert to meters and grams convert to kilograms in the MKSA system. Understanding these conversions is crucial for accurate scientific calculations across different measurement systems. The conversation underscores the importance of dimensional consistency in physics.
Power = Force v Speed
Power of my horse = 104kgx9.81m/s^2 x 0.732m/s = 1HP =746W
Force/tension in rope stay the same if horse run at 0.73m/s or at 15m/s, so why then horse need to be more powerfull to pull at higher speed even if backward force at him(rope tension) stay the same?
I understand that if I increase weight, it is hrader for horse to pull at higher speed because now is backward force increased, but don't understand why is harder to pull at higher speed if weight(backward force)...