Jump to content
  • entries
    30
  • comments
    6
  • views
    4,623

Drifting-Without snow


IVIR

612 views

People have started to worry about the roads in Rochester as a thin coating of snow, or ice, can cause cars to start sliding due to the lower coefficient of friction between rubber and ice rather than rubber and asphalt. This sensation, although scary for most drivers, is often sought after by drifting. Drifting is the process of purposefully kicking out the back-end of a car around a turn, for the thrill and awesomeness, an then corralling the car as the driver comes out of the turn. Although one way to start drifting is simply approaching a turn with a high speed and cranking the front wheels, causing the force on the back wheels to overcome the coefficient of friction and start sliding, another technique involves using the handbrake. By locking up the back wheels, the handbrake causes the car to either stop at a low speed due to high coefficient of friction, or allows the rear wheels to kick out if the front wheels are turned even slightly. As the rear wheels lock and begin to kick out, they experience a centripetal acceleration due to their position relative to the front wheels, but the entire car is moving at the same time. Once the driver enters a drift, they begin to steer in the opposite direction of their spin to correct the car's direction and begin to accelerate. While it may seem like braking would help correct the car, that only helps the car continue to slide, instead of regaining grip. As the car begins accelerating, the wheels spin against the asphalt/concrete. The high coefficient of friction of friction between the two surfaces (around .70), allows the wheels to slip less and less on each revolution until they fully regain traction. This acceleration, and the force of friction caused by oversteering, allows the car to overcome its angular momentum and continue with only linear momentum. 

One of the most essential aspects of most drifting cars is being very light. The car needs to have a low mass because momentum is directly proportional to mass and velocity, so a lower mass means less momentum that needs to be overcome when correcting the cars direction. A heavy car often spins too much in either direction, which is why a lot of sportscar drivers spin out or crash their cars while attempting to drift even a small amount. This is also why a hallowed out Subaru is better at drifting than a Lamborghini. 

0 Comments


Recommended Comments

There are no comments to display.

Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...