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  2. Circle of forces - Wikipedia

    en.wikipedia.org/wiki/Circle_of_forces

    The diagram below shows the tire from above, so that the road surface lies in the xy-plane. The vehicle to which the tire is attached is moving in the positive y direction. In this example, the vehicle would be cornering to the right (i.e. the positive x direction points to the center of the corner).

  3. Lift hill - Wikipedia

    en.wikipedia.org/wiki/Lift_hill

    A lift hill, or chain hill, is an upward-sloping section of track on a roller coaster on which the roller coaster train is mechanically lifted to an elevated point or peak in the track. Upon reaching the peak, the train is then propelled from the peak by gravity and is usually allowed to coast throughout the rest of the roller coaster ride's ...

  4. Hill - Wikipedia

    en.wikipedia.org/wiki/Hill

    Drumlin – an elongated whale-shaped hill formed by glacial action. Butte – an isolated hill with steep sides and a small flat top, formed by weathering. Kuppe – a rounded hill or low mountain, typical of Central Europe. Tor – a rock formation found on a hilltop; also used to refer to the hill, especially in South West England and the ...

  5. World's strangest: The road where cars roll uphill

    www.aol.com/news/2014-05-30-worlds-strangest-the...

    Even a car in neutral will look like it's starting to roll up the hill. Conspiracy theories range from magnetic forces to supernatural beings. One thing locals agree on? This road is confusing.

  6. Slip (vehicle dynamics) - Wikipedia

    en.wikipedia.org/wiki/Slip_(vehicle_dynamics)

    In (automotive) vehicle dynamics, slip is the relative motion between a tire and the road surface it is moving on. This slip can be generated either by the tire's rotational speed being greater or less than the free-rolling speed (usually described as percent slip), or by the tire's plane of rotation being at an angle to its direction of motion (referred to as slip angle).

  7. Automobile handling - Wikipedia

    en.wikipedia.org/wiki/Automobile_handling

    [citation needed] This gives the front tires an advantage in overcoming the car's moment of inertia (yaw angular inertia), thus reducing corner-entry understeer. Using wheels and tires of different sizes (proportional to the weight carried by each end) is a lever automakers can use to fine tune the resulting over/understeer characteristics.

  8. Bicycle tire - Wikipedia

    en.wikipedia.org/wiki/Bicycle_tire

    Besides the different tread patterns available on some mountain bike tires mentioned above, front and rear tire sets are available for road bikes with different tread patterns, tread compounds, and sizes for the front and rear wheels. [58] Other scenarios involve replacing a damaged tire, and leaving the other one unchanged.

  9. Cornering force - Wikipedia

    en.wikipedia.org/wiki/Cornering_force

    The diagram is misleading because the reaction force would appear to be acting in the wrong direction. It is simply a matter of convention to quote positive cornering force as acting in the opposite direction to positive tire slip so that calculations are simplified, since a vehicle cornering under the influence of a cornering force to the left ...

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