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Question

A car has to move on a level turn of radius 45 m. If the coefficient of static friction between the tyres and the road is μs=0.5, find the maximum speed the car can achieve without skidding.

A
54 km/h
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B
18 km/h
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C
30 km/h
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D
40 km/h
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Solution

The correct option is A 54 km/h
The limiting condition for velocity at a level turn is given by
vμsrg
For maximum velocity,
vmax=μsrg
vmax=0.5×10×45
vmax=15 m/s
=15×185=54 km/h

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