A car travels round a flat circular bend of radius . The coefficient of friction between tyres and road is . What is the maximum speed at which the car can take the bend without skidding, in ? ()
Answer and explanation
Correct answer: B. 16.3
- Step 1: On a unbanked flat circular road, static friction provides the necessary centripetal force: .
- Step 2: Cancel mass and solve for maximum speed: .
- Step 3: Substitute coefficient , radius , and : .
Answer
16.3.
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