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How does tire pressure affect distance traveled by a bicycle coasting to a stop?
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[QUOTE="erobz, post: 6661831, member: 700856"] We've been talking about wheels and rolling a lot recently, and I still can't seem to produce a simple model ( whether a poor representation of reality or not ), say ##c_{rr}## is constant proportional to ##N##. Imagine a wheel of radius ##R## rolling to the right without slipping. But it is accelerating due to rolling resistance. The rolling resistance should manifest as a torque that is accelerating the wheel? $$ \circlearrowright^+ \sum \tau = f_{sf} R - c_{rr} m g R = I \frac{a_{cm}}{R} \tag{1} $$ $$ \rightarrow^+ \sum F = -f_{fr} + c_{rr} m g = m a_{cm} \tag{2} $$ So, if multiplty ##2## by ##R## and add ##1 \to 2## I end up with no forces ( hopefully I didn't make some silly algebra error )! If I make the force of static friction in the same direction as the rolling resistance, same issue. What are the issues here? I'm probably doing something silly. [/QUOTE]
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How does tire pressure affect distance traveled by a bicycle coasting to a stop?
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