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It depends on how you push it down.
Terminal velocity (top speed) is when the driving force is matched by the two opposing drag forces, air drag force and rolling resistance force.
The (constant) driving force (due to gravity) you get from :
force (N) = mass (m) of bike and rider in kg * g * sine ( incline angle in degrees) )
( g = local gravity rate (use 9.8 (m/s)/s ) )
The air drag force in newtons = drag coefficient (use 0.24) * velocity ^2
(velocity is in m/s)
The (constant) rolling resistance force in newtons = m * g * cosine (incline angle ) * rolling resistance coefficient (use 0.03).
Sequence : guess at top speed (in m/s), calculate the for and against forces for that speed, and adjust this guess until its zero.
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∙ 10y ago
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Name a way to get down a hill?
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When you roll down a hill on a bike without peddling change one letter from toast?
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