If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads).(a) Calculate the ideal speed to take a 100 m radius curve banked at 15°. m/s(b) What is the minimum coefficient of friction needed for a frightened driver to take the same curve at 20.0 km/h?

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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If a car takes a banked curve at less than the ideal speed, friction is needed to keep it from sliding toward the inside of the curve (a real problem on icy mountain roads).(a) Calculate the ideal speed to take a 100 m radius curve banked at 15°.
 m/s
(b) What is the minimum coefficient of friction needed for a frightened driver to take the same curve at 20.0 km/h?

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