A Civil Engineer wishes to redesign a curved roadway in such a way that the car will not have to rely on friction to round the curve without skidding. In other words, a car moving at the designated speed can negotiate the curve even when the road is covered with ice. Such ramp is usually banked, which means that the roadway is tilted toward the inside of the curve. Suppose the designated speed for the ramp is to be 30 mi/hr and the radius of the curve is 35.0 m. At what angle should the curve be banked

A Civil Engineer wishes to redesign a curved roadway in such a way that the car will not have to rely on friction to round the curve without skidding. In other words, a car moving at the designated speed can negotiate the curve even when the road is covered with ice. Such ramp is usually banked, which means that the roadway is tilted toward the inside of the curve. Suppose the designated speed for the ramp is to be 30 mi/hr and the radius of the curve is 35.0 m. At what angle should the curve be banked

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 64P: A runner taking part in the 200-m dash must run around the end of a track that has a circular arc...

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A runner taking part in the 200-m dash must run around the end of a track that has a circular arc with a radius of curvature of 30.0 m. The runner starts the race at a constant speed. If she completes the 200-m dash in 23.2s and rum at constant speed throughout the race, what is her centripetal acceleration as she runs the curved portion of the track?
What is the average speed in mi/h of a person at the equator as a result of the Earths rotation? (Take the radius of the Earth to be RE = 4000 mi.)
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It was a dark and stormy night in Winona, Minnesota. A driver advances alongan icy road - assume there is no friction between the tires and the road - must ne-gotiate a turn for which the road traces out an arc of a circle of radius 321 m. Theroad is banked at an angle of 5.2 . What is the speed with which she must take the curve to avoid sliding?
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it takes a 600kg racing car 10 secs to travel at a uniform speed around a circular track with a radius of 50m. What average force must the car's tires exert against the track tp maintain this circular motion? What is the acceleration of the car?
A high-speed test track for cars has a curved section an arc of a circle of radius R - 858 m. The curved section is banked at angle 21.8° from the horizontal to help the cars to stay in the road while moving at high speeds. The acceleration of gravity is 9.8 m/s?.