# Effect of forces (gravitational or other) on a wheel out cycle [duplicate]

It is not a question. It is my own doubt.

Suppose a wheel is moving towards the North. The Wheel shouldn't fall if the wheel had not stopped is moving. But if the wheel stops it's moving them it will falls either the easy or West (I know in one case it didn't fall and stand still, So Just think about bicycles. In this case the cycle may not fall too but the chance is very low). So give me a idea why the wheel is falling (in some cases) and not falling (in some cases). Please give me a good idea.

Note: If I assume the wheel as a ring then it is given that the width is so small like a coin.If I stand the coin then it will surely fall but if I forced it and moved out then it won't fall till it stops. My question is why??

Caution: It is not duplicate of the question which was asked before.See the previous question tells us that why bicycles falls while running at a high speed.But my question is why cycles didn't fall while driving but falls when it has no motion?

• Related: physics.stackexchange.com/q/506/2451 and links therein. – Qmechanic Oct 19 '17 at 5:07
• – Omry Oct 19 '17 at 5:08
• @sammy gerbil & John Rennie I explained why my question is different to the previous .So why you mark it as duplicate??Please reopen it – Sufaid Saleel Oct 20 '17 at 3:17