In November 2024
Answer to Question #328485 in Mechanics | Relativity for scabuto
Andrea has a particularly old bike, and she has not lubricated the chain or gears. This causes friction inside the gears as she rides. She begins coasting on flat ground at a speed of 10 m/s, and after a few seconds is only going 8 m/s. How much energy has been converted to heat?
"E=E_1-E_2=\\frac m2(v_1^2-v_2^2)=360~J."
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