A curved in a level road has a radius 75 m . The maximum speed of a car turning this curved road can be 30 m s - 1 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 - 1 .

Question

A curved in a level road has a radius 75 m . The maximum speed of a car turning this curved road can be 30 m s - 1 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 - 1 .,

MARKS App · Accepted Answer

The maximum speed is given as v = μ g r , where, μ is coefficient of friction and r is radius of curved road. ⇒ v 1 v 2 = r 1 r 2 ⇒ 30 v 2 = 75 48 = 25 16 = 5 4 ⇒ v 2 = 24 m s - 1

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