If you give a bike a unspoilt push down a James Jerome Hill , it can ride off into the sunset without you . Moving wheel can stay vertical even without a passenger . Why is this ?
The folks atMinutePhysicstake a look at the phenomenon :
When a moving bike begins pitch to one side , it also automatically steer in that direction , bringing it back into balance . There are several reasons for this , physically speaking , all of which come together to help keep a bike upright :
motorcycle have a steering bloc that ’s tilted more or less backward , toward the seat . The bike wheel make contact with the land slightly behind that axis , so when the bike turn , the upward force of the solid ground sprain the bicycle and handlebar in the same centering .
The weight of the handlebar is position slightly in front of the steering axis . When the motorcycle turns , the downward pull from the mass of the handlebar helps plough the bicycle in the same direction .
Gyroscopic precession , which govern how helicopters guide , also affect bicycle . When a power is implement to a spinning wheel , the movement happens 90 degrees beyond where it was applied . So force apply pushing the motorcycle leave from the basis in reality turn the middle of the steering wheel will .
The intellect a slow - moving bike does n’t stand up up is that the rack does n’t have enough time to turn to keep the bike in balance .
So , maybe do n’t push your wheel down a giving Benny Hill .
[ h / t : NPR ]
All trope from MinutePhysics // Screenshots viaYouTube
