College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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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 w…
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A string is wrapped several times around the rim of a small hoop with radius 8.00 cm and mass 0.180 kg. The free end of the string is held in place and the hoop is released from rest (the figure (Figure 1)). The hoop has descended 50.0 cm. Part A Calculate the angular speed of the rotating hoop. Express your answer in radians per second. W = rad/s Part B Figure < 1 of 1 > Calculate the speed of its center. Express your answer in meters per second. v = m/s 0.0800 m 國 國
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Transcribed Image Text:A string is wrapped several times around the rim of a small hoop with radius 8.00 cm and mass 0.180 kg. The free end of the string is held in place and the hoop is released from rest (the figure (Figure 1)). The hoop has descended 50.0 cm. Part A Calculate the angular speed of the rotating hoop. Express your answer in radians per second. W = rad/s Part B Figure < 1 of 1 > Calculate the speed of its center. Express your answer in meters per second. v = m/s 0.0800 m 國 國
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