If a certain car, going with speed v, rounds a level curve with a radius R, it is just on the verge of skidding. If its speed is now doubled, the radius of the tightest curve on the same road that it can round without skidding is:(adsbygoogle = window.adsbygoogle || []).push({});

Answer is 4R.. but I don't understand why?

I know the equation is f = mV²/R

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# Angular acceleration of a car

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