I had a sudden
I think we can all agree on the fact that a lighter wheelset (or any body) will accelerate faster... yeah?
now, by definition, acceleration is the rate at which velocity changes (note velocity is NOT speed)
as velocity is direction dependent, our rotating wheel is constantly changing direction, which means a change in velocity. Therefore acceleration is present. (Picture a car turning a corner at a constant speed of 60kmph, this is not a constant velocity, thus acceleration is present)
Thus, we are always accelerating...
Have I missed something here?
According to newton III (or newton I, depending on how you want to interpret it) an object moving at a constant velocity will continue to move at a constant velocity, unless a net force is applied...
When we are going up hill, due to gravity, the more weight we have, the higher the Fg is (extra weight), meaning to have a zero Fnet (to stay moving at a constant velocity), we need to apply more force (pedal harder). Wouldn't this mean that even if we are riding at a constant velocity, weight still matters? (Fair friction is another force too btw)
EDIT: had no idea this thread was this old...
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Disclosure: I'm sponsored by Velocite, but I do give my honest opinion about them (I'm endorsed to race their bikes, not say nice things about them)