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March 02, 2026, 10:20:17 pm

Author Topic: Circular Motion questions  (Read 835 times)  Share 

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tolga

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Circular Motion questions
« on: December 26, 2009, 05:05:48 pm »
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A car driving around a roundabout with constant speed, if the driver of the car keeps speeding what would eventually happen to the car as it travelled around the roundabout?explain
The answer states that the force needed to give the car a large centripetal acceleration will eventually exceed the maximum frictional force in return the car skidding off.
 
i dont understand what what force it's talking about and what the answer is on about.

appianway

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Re: Circular Motion questions
« Reply #1 on: December 26, 2009, 08:34:18 pm »
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For a car to undergo centripetal acceleration, it must experience a force. This force is provided by the friction between the tyres and the road in this instance, however,  is limited by the coefficient of friction... therefore it can't exceed this value. The force needed for centripetal acceleration is determined by the velocity, and hence if the velocity is too large, the road won't be able to provide a force of enough magnitude to allow the car to rotate.