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A string is wrapped several times around the rim of a

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 20E Chapter 10

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 20E

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 (?Fig. E10.20?). After the hoop has descended 75.0 cm, calculate (a) the angular speed of the rotating hoop and (b) the speed of its center.

Step-by-Step Solution:

Solution 20E Step 1 of 4: y2= 0, so U =20 because U = Mgy2 2 y = 0.750 m, 1 1 2 The hoop is released from the rest , v 1 0 so K = 01because K = mv 1 2 1 2 vcm = R and I cm = MR

Step 2 of 4

Chapter 10, Problem 20E is Solved
Step 3 of 4

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

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A string is wrapped several times around the rim of a