A car of mass M= 800kg traveling at 40.0km/hour enters a banked turn covered with ice. The road is banked at an angleθ, and there is no friction between the road and the car’s tires as shown in (Figure 1). Use g= 9.80m/s^2 throughout this problem. What is the radius r of the turn if θ = 20.0 ∘ (assuming the car continues in uniform circular motion around the turn)? Part 2: Now, suppose that the curve is level (θ=0) and that the ice has melted, so that there is a coefficient of static friction μ between the road and the car’s tires as shown in (Figure 2) . What isμmin, the minimum value of the coefficient of static friction between the tires and the road required to prevent the car from slipping? Assume that the car’s speed is still 40.0 km/hour and that the radius of the curve is 34.6 m .
A car of mass M= 800kg traveling at 40.0km/hour enters a banked turn covered with ice. The road is banked at an
angleθ, and there is no friction between the road and the car’s tires as shown in (Figure 1). Use g= 9.80m/s^2 throughout this problem. What is the radius r of the turn if θ = 20.0 ∘ (assuming the car continues in uniform circular motion around the turn)?
Part 2: Now, suppose that the curve is level (θ=0) and that the ice has melted, so that there is a coefficient of static friction μ between the road and the car’s tires as shown in (Figure 2) . What isμmin, the minimum value of the coefficient of static friction between the tires and the road required to prevent the car from slipping? Assume that the car’s speed is still 40.0 km/hour and that the radius of the curve is 34.6 m .
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