A roller coaster of mass m (when filled with passengers) goes over the crest öf å čircular section of track at speed v. The radius of the circular loop is r. a) Find a formula for the normal force of the track on the roller coaster, as a function of m, g, v, and r. b) Find a formula for the speed at which the normal force goes to zero. (By the way, at this speed, the roller coaster will start to lift off of the track and the passengers will feel completely weightless.) c) Let's put some numbers in the formula. If the curved track at the top of a crest is 20 m (about 60 ft) in radius, find the speed in m/s and mi/hr at which the car would lift off the track.
A roller coaster of mass m (when filled with passengers) goes over the crest öf å čircular section of track at speed v. The radius of the circular loop is r. a) Find a formula for the normal force of the track on the roller coaster, as a function of m, g, v, and r. b) Find a formula for the speed at which the normal force goes to zero. (By the way, at this speed, the roller coaster will start to lift off of the track and the passengers will feel completely weightless.) c) Let's put some numbers in the formula. If the curved track at the top of a crest is 20 m (about 60 ft) in radius, find the speed in m/s and mi/hr at which the car would lift off the track.
Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter8: Central-force Motion
Section: Chapter Questions
Problem 8.4P
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