An automobile moves on a level horizontal road in a circle of radius 30 m. The coefficient of friction between tires and road is 0.50. The maximum speed with which this car can round this curve is:
A) 3.0 m/s
B) 4.9 m/s
C) 9.8 m/s
D) 12 m/s
E) 13 m/s

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The Answer of An automobile moves on a level horizontal road in a circle of radius 30 m. The coefficient of friction between tires and road is 0.50. The maximum speed with which this car can round this curve is:
A) 3.0 m/s
B) 4.9 m/s
C) 9.8 m/s
D) 12 m/s
E) 13 m/s

An Automobile Moves on a Level Horizontal Road in a Circle