When a diver gets into a tuck position by pulling in her arms and legs, she increases her angular speed. Before she goes into the tuck position, her angular velocity is 5.5 rad/s and she has a moment of inertia of 1.7 kg · m2. Once she gets into the tuck position, her angular speed is 15.1 rad/s. Determine her moment of inertia whe she is in the tuck position. Assume the net torque on her is zero. kg · m2
When a diver gets into a tuck position by pulling in her arms and legs, she increases her angular speed. Before she goes into the tuck position, her angular velocity is 5.5 rad/s and she has a moment of inertia of 1.7 kg · m2. Once she gets into the tuck position, her angular speed is 15.1 rad/s. Determine her moment of inertia whe she is in the tuck position. Assume the net torque on her is zero. kg · m2
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 63P: A system consists of a disk of mass 2.0 kg and radius 50 cm upon which is mounted an annular...
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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.
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