A car has to move on a level turn of radius 45m. 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
54km/h
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B
18km/h
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C
30km/h
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D
40km/h
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Solution
The correct option is A54km/h The limiting condition for velocity at a level turn is given by v≤√μsrg
For maximum velocity, vmax=√μsrg ⇒vmax=√0.5×10×45 ⇒vmax=15m/s =15×185=54km/h