Why do a stationary cycle tend to fall in either side while its steadiness increases with velocity?

Question

Answer my question instantly !

Answer 1

The question is often asked and, as often as not, is an introduction to expound on the gyroscopic forces of the rotating wheels that make bicycling possible. This claim is as accurate as the one that authoritatively explains that spokes support the bicycle wheel by hanging the hub from the upper spokes. They don't and it doesn't.

Some who propose the gyroscope theory, also explain that the advanced skill of making fast turns on a bicycle involves a technique they call countersteer. In fact, a bicycle cannot be ridden without countersteer, commonly called balance, and it is this balance that is used to keep the bicycle upright, just as one does while walking, running, ice skating or roller skating. To say that the gyroscopic forces of rotating wheels keep the bicycle upright, ignores that roller skates are operated the same way and have so little gyroscopic moment that one cannot detect it. On ice skates the argument fails entirely. Besides, a bicycle can be ridden at less than three miles
per hour, at which speeds there is no effective gyroscopic reaction.

Those who ride no-hands sense and make use of the small gyroscopic effect of the front wheel to steer. This, together with trail of the steering geometry stabilize steering. Without trail, the bicycle would have no straight ahead preference and would rapidly fall if one were to attempt riding no-hands. Many bicyclists never master riding no-hands because the gyroscopic forces are too small to be detected. Hands on the handlebars completely obscure these forces.

For those who ride no-hands, the countersteer effect should be visible and obvious because the bicycle must be leaned away from the preferred lean angle and direction of a curve so that the turn can be initiated. With hands on the bars, this opposing lean is unnecessary, because the front wheel can be steered without leaning.

A good example of a bicycle without gyroscopic action is the ski-bob, a "bicycle" has short ski runners in place of wheels. This bicycle, that has no rotating parts, is ridden downslope easily by anyone who can ride a bicycle.

Answer 2

The gyroscopic effect. Hope that helps you with your test ...remind me to never hire you