Modern roller coasters have vertical loops like the one shown in the figure below. The radius of curvature is smaller at the top than on the sides so that the downward centripetal acceleration at the top will be greater than the acceleration due to gravity, keeping the passengers pressed firmly into their seats. D B LIT 17.76 up minimum What is the speed of the roller coaster at the top of the loop if the radius of curvature there is 20 m and the downward acceleration of the car is 1.61 g? down C m/s What is the direction of the Normal Force acting on the car? Number maximum there is no normal force A If the mass of the car is 932 kg, what is the size of the Normal force acting on the car (in N)? 4

Modern roller coasters have vertical loops like the one shown in the figure below. The radius of curvature is smaller at the top than on the sides so that the downward centripetal acceleration at the top will be greater than the acceleration due to gravity, keeping the passengers pressed firmly into their seats. D B LIT 17.76 up minimum What is the speed of the roller coaster at the top of the loop if the radius of curvature there is 20 m and the downward acceleration of the car is 1.61 g? down C m/s What is the direction of the Normal Force acting on the car? Number maximum there is no normal force A If the mass of the car is 932 kg, what is the size of the Normal force acting on the car (in N)? 4

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 10.2CYU: Check Your Understanding A centrifuge used in DNA extraction spins at a maximum rate of 7000 rpm,...

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