A capstan is a rotating drum or cylinder over which a rope or cord slides to provide a great amplification of the rope's tension while keeping both ends free . Since the added tension in the rope is due to friction, the capstan generates thermal energy.
If the difference in tension (T0 - T) between the two ends of the rope is and the capstan has a diameter of and turns once in , find the rate at which thermal energy is being generated.
Give a numerical answer, in watts, rounded to the nearest 10 W.
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