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A car of mass $M = 800\text{ kg}$ traveling at $60.0\text{ km/hour}$ enters a banked turn covered with ice. The road is banked at an angle $\theta$, and there is no friction between the road and the car's tires as shown in (Figure 1). Use $g = 9.80\text{ m/s}^2$ throughout this problem. Part A What is the radius $r$ of the turn if $\theta = 20.0^\circ$ (assuming the car continues in uniform circular motion around the turn)? Express your answer in meters. View Available Hint(s) r = 77.9 m SubmitPrevious Answers Correct Important: If you use this answer in later parts, use the full unrounded value in your calculations. Part B Now, suppose that the curve is level ($\theta = 0$) and that the ice has melted, so that there is a coefficient of static friction $\mu$ between the road and the car's tires as shown in (Figure 2). What is $\mu_{min}$, 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 $60.0\text{ km/hour}$ and that the radius of the curve is $77.9\text{ m}$. Express your answer numerically. View Available Hint(s) $\mu_{min} = $

          A car of mass $M = 800\text{ kg}$ traveling at $60.0\text{ km/hour}$ enters a banked turn covered with ice. The road is banked at an angle $\theta$, and there is no friction between the road and the car's tires as shown in (Figure 1). Use $g = 9.80\text{ m/s}^2$ throughout this problem.

Part A
What is the radius $r$ of the turn if $\theta = 20.0^\circ$ (assuming the car continues in uniform circular motion around the turn)?
Express your answer in meters.
View Available Hint(s)
r = 77.9 m
SubmitPrevious Answers
Correct
Important: If you use this answer in later parts, use the full unrounded value in your calculations.

Part B
Now, suppose that the curve is level ($\theta = 0$) and that the ice has melted, so that there is a coefficient of static friction $\mu$ between the road and the car's tires as shown in (Figure 2). What is $\mu_{min}$, 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 $60.0\text{ km/hour}$ and that the radius of the curve is $77.9\text{ m}$.
Express your answer numerically.
View Available Hint(s)
$\mu_{min} = $

A car of mass M = 800 kg traveling at 60.0 km/hour enters a banked turn covered with ice. The road is banked at an angle θ, and there is no friction between the road and the car's tires as shown in (Figure 1). Use g = 9.80 m/s^2 throughout this problem.

Part A
What is the radius r of the turn if θ = 20.0^∘ (assuming the car continues in uniform circular motion around the turn)?
Express your answer in meters.
View Available Hint(s)
r = 77.9 m
SubmitPrevious Answers
Correct
Important: If you use this answer in later parts, use the full unrounded value in your calculations.

Part B
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 is μmin, 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 60.0 km/hour and that the radius of the curve is 77.9 m.
Express your answer numerically.
View Available Hint(s)
μmin =

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