A car of mass M = 1000 kg traveling at 60.0 km/hour enters a banked turn covered with ice. The road is banked at an angle 8, and there is no friction between the road and the car's tires as shown in (Figure 1). Use g = 9.80 m/s2 throughout this problem. Figure < 2 of 2 > ▼ Part A What is the radius of the turn if 8 = 20.0° (assuming the car continues uniform circular motion around the turn)? Express your answer in meters. View Available Hint(s) = 77.9 m Submit ✓ Correct Correct answer is shown. Your answer 77.87 m was either rounded differently or used a different number of significant figures than required for this part. Important: If you use this answer later parts, use the full unrounded value in your calculations. Part B Previous Answers Now, suppose that the curve is level (8= 0) and that the ice has melted, so that there is a coefficient of static friction between the road and the car's tires as shown in (Figure 2). What is in 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) Amin = Submit [5] ΑΣΦ 3 ?
A car of mass M = 1000 kg traveling at 60.0 km/hour enters a banked turn covered with ice. The road is banked at an angle 8, and there is no friction between the road and the car's tires as shown in (Figure 1). Use g = 9.80 m/s2 throughout this problem. Figure < 2 of 2 > ▼ Part A What is the radius of the turn if 8 = 20.0° (assuming the car continues uniform circular motion around the turn)? Express your answer in meters. View Available Hint(s) = 77.9 m Submit ✓ Correct Correct answer is shown. Your answer 77.87 m was either rounded differently or used a different number of significant figures than required for this part. Important: If you use this answer later parts, use the full unrounded value in your calculations. Part B Previous Answers Now, suppose that the curve is level (8= 0) and that the ice has melted, so that there is a coefficient of static friction between the road and the car's tires as shown in (Figure 2). What is in 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) Amin = Submit [5] ΑΣΦ 3 ?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:A car of mass M = 1000 kg traveling at 60.0 km/hour enters a
banked turn covered with ice. The road is banked at an angle 8,
and there is no friction between the road and the car's tires as
shown in (Figure 1). Use g = 9.80 m/s² throughout this problem.
Figure
< 2 of 2 >
Part A
What is the radius of the turn if 8 = 20.0° (assuming the car continues in uniform circular motion around the turn)?
Express your answer in meters.
View Available Hint(s)
= 77.9 m
Submit
Correct
Correct answer is shown. Your answer 77.87 m was either rounded differently or used a different number of significant figures than required for this
part.
Important: If you use this answer in later parts, use the full unrounded value in your calculations.
Part B
Previous Answers
Now, suppose that the curve is level (8 = 0) and that the ice has melted, so that there is a coefficient of static friction between the road and the car's tires as
shown in (Figure 2). What is in 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)
Monin =
Submit
|| ΑΣΦ
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