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# Magical Cycle

What might be the reason that a stationary cycle leans down to one side (without a stand), while a moving one doesn't?

Note by Lokesh Sharma
4 years, 9 months ago

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very good question. I googled and found a site which I found very funny -> bicycles.stackexchange.com :)

Anyways, here are the answers I found -

- 4 years, 9 months ago

The Stack Exchange Network is actually very nice and funny. I got to know of Brilliant because of Calvin's profile on Math.StackExchange!

- 4 years, 9 months ago

The angular momentum in the wheels is responsible for stability.

- 4 years, 9 months ago

This is my theory: When the moving bike leans to one side, there is additional force created between the bike's wheels and the ground other than that already there due to the bike's weight. That centripetal force, and the friction with the ground, sort of force the bike to steady itself in an upright position, countering the force willing it to fall down. The stationary bike does not have this centripetal force.

- 4 years, 9 months ago

I think it has something to do with its centre of gravity.

- 4 years, 9 months ago

I think the flood of air particles that the moving bike pummels through keeps the bike straighter due to the pressure on both sides. (my guess)

- 4 years, 9 months ago