27k views

### Why do we fall down when the bicycle slows down? [duplicate]

My question is: It is easy to balance a bicycle when it is moving at a fairly high velocity, say 7 m/s or 25 km/hr. But when a bicycle slows down, it is hard to keep it upright, and the person riding ...
3k views

### Why does a bicycle (without any support of stand) falls down being at rest, but not under motion? [duplicate]

I have always seen a bicycle not standing without any support, it either falls down to the right or to the left, may even to some other direction. But,the same two wheeler when under motion,moves ...
3k views

### Is the moment of inertia of the bicycle wheel relevant for keeping bicycle in the upright position? [duplicate]

When we were taught physics at school and the topic was the Inertia and Flywheel, they used as an example that the moment of inertia of the bicycle wheel is the reason why we are able to keep the ...
915 views

### How do bikes stay upright? [duplicate]

Possible Duplicate: Why doesn't the bike fall if going with a high speed? How does a bike stay upright? I know there are various theories involving castor effects, and gyroscopic motion but ...
687 views

### How does a wheel balance itself during circular motion? [duplicate]

A wheel (or any ring of considerable mass) hardly balances itself when it is placed vertically on ground, but when we roll it along the ground it balances itself. What causes this effect? I guess its ...
493 views

### How do bicycle and motorcycles turn? [duplicate]

How do bicycles manage to turn without falling. According to my intuition when the rider tilts the bike it should start falling down. In reality though bicycles manage to continue moving without ...
266 views

### How does a bicycle remain stable when in motion? [duplicate]

I could understand it at a theoretical standpoint but how can one represent the dynamic stability of the bicycle mathematically using a vector diagram ?
128 views

### rolling a coin or a riding a bicycle [duplicate]

Why somebody riding a bicycle keeps balance and doesn't fall left or right, while is prone to falling when the bicycle stops. One force (to front) shouldn't affect in any way balance left/right. I ...
175 views

### Why do we fall when we ride bicycle slowly but we don't when riding it fastly [duplicate]

Possible Duplicate: Why doesn't the bike fall if going with a high speed? Why is it that, when we ride bicycle at good speed, it is perfectly balanced and we don't fall. But we lose balance ...
111 views

### Why a two wheeler is not pulled down by gravity while moving [duplicate]

As for every two wheeler the centre of mass will be much closer to earth in leaning position than in standing. but while moving it doesn't fall (lean).what kind of forces are preventing the falling ...
105 views

### What keeps a bike from falling while in motion? [duplicate]

Okay, so it might seem like a trivial question, but when I suddenly stop my bike (not really fast), I lose balance. Why is that? What keeps me from falling while riding it? EDIT : The answers in the ...
61 views

### When we ride a bicycle then we can balance it but when we apply brakes then we need to put our legs down else we may fall, why? [duplicate]

I got this idea while sitting and studying physics in school but not getting answer please try to answer it.
51 views

### Bicycle physics [duplicate]

From a long time, I have a question that bicycle is not stable at low speed or for that matter it's difficult to balance bicycle on its wheels in static position (with zero speed and no brakes). Can ...