Frictional Force on a Car in a Turn

A car of mass making a turn on a curve of radius with a velocity experiences a centripetal acceleration . In order to keep moving without skidding, a frictional force needs to act toward the center of the curve, with a minimal value for the coefficient of static friction.


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The centripetal acceleration is . The force must be equal to the maximum static friction force , where is the gravitational acceleration.
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