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Q.

A curved in a level road has a radius 75m. The maximum speed of a car turning this curved road can be 30 m/s without skidding. If radius of curved road is changed to 48 m and the coefficient of friction between the tyres and the road remains same, then maximum allowed speed would be__ m/s.

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Detailed Solution

 fsmax=mv2R μmg=mv2R  V=μRg v2v1=R2R1 v230=4875 V2=24m/s

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