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Amount of time it would take for a suspended bicycle wheel to spin after a specified force is applied.?


Say a force of 50 N is applied on a bicycle pedal (in the same manner it would if there was a rider) how long would it take for the wheel to completely stop. Given that the wheel is suspended and its radius is 0.3m and the wheel (rear wheel) has a mass of 4kgs - ignoring friction in this case.

Adam is right (provided the wheel is well balanced!)

In addition to mass, you also need to know the mass distribution.

e.g.; if the wheel is not balanced, the uneven pull of gravity on one side will effect the outcome.
if you ignore friction, it will never stop
Newton: an object in motion stays in motion unless another force acts upon it.

Ignoring friction in the bearings it will not stop. You did not mention air resistance, if it is included then it will obviously slow down the motion, however, it is much more complicated, depending on the density of the air and so on. If these factors are ignored though, the wheel will never stop.

"That Newton fellow was right"
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