Answered: Problem 9: A roller coaster, shown in…

Problem 9: A roller coaster, shown in the figure, is pulled up to point A where it and its screaming occupants are released from rest. Assuming no friction, calculate the speed at points B, C, D. A

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 63P: A small object is placed at the top of an incline that is essentially frictionless. The object...

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

Problem 9:
A roller coaster, shown in the figure, is pulled
up to point A where it and its screaming
occupants are released from rest. Assuming
no friction, calculate the speed at points B,
C, D.
A
m
22 m
B
C 32 m
16 m

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