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CP CALC The angular velocity of a flywheel obeys the

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

Solution for problem 3E Chapter 9

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 3E

CP CALC? The angular velocity of a flywheel obeys the equation ?z(t) = A + Bt2, where ?t? is in seconds and A and B are constants having numerical values 2.75 (for A ) and 1.50 (for B ). (a) What are the units of A and B if ?z is in rad/s? (b) What is the angular acceleration of the wheel at (i) t = 0 and (ii) t = 5.00 s? (c) Through what angle does the flywheel turn during the first 2.00 s? ( Hint: See Section 2.6.)

Step-by-Step Solution:

Solution 3E Step 1: (a).we know from dimensional analysis that the dimensions of each side of the equation must match up therefore the dimensions of A are rad/s and the dimensions of B are rad/s since t will have the dimension s 2

Step 2 of 3

Chapter 9, Problem 3E is Solved
Step 3 of 3

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

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