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|    sci.physics.research    |    Current physics research. (Moderated)    |    17,516 messages    |
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|    Message 16,355 of 17,516    |
|    Tom Roberts to Luigi Fortunati    |
|    Re: The cyclist    |
|    04 Sep 18 22:54:32    |
      From: tjroberts137@sbcglobal.net              On 9/2/18 2:06 AM, Luigi Fortunati wrote:       > For the entire steep ascent, the cyclist A (in the absence of the air       > resistance) maintains the comfortable CONSTANT speed of one meter per       > second       >       > Instead the cyclist B maintains (in the same ascent) the CONSTANT speed       > of 10 m/s (ten times the speed of A).       >       > Is the FORCE on the pedals of the cyclist B equal to or greater than       > that of the cyclist A?              Every cyclist knows that the force on the pedals depends strongly on the       gear (that's the point of multiple gears). So B's force on the pedals       could be greater, equal, or less than A's, depending on the gears used       by the two cyclists.               10 m/s up a steep ascent requires a professional cyclist        (think Tour de France). But 1 m/s is too slow to maintain        good control of the bike; get off and walk.              Tom Roberts              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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