Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 13 - Exercises and Problems - Page 239: 51


821 kg

Work Step by Step

We set the angular frequencies equal to each other to obtain: $.79\sqrt{\frac{k}{\frac{1}{12}ML^2}}=\sqrt{\frac{k}{\frac{1}{12}ML^2+ 2m(L/2)^2}}$ $.79\sqrt{\frac{k}{\frac{1}{12}ML^2}}=\sqrt{\frac{k}{\frac{1}{12}ML^2+ .5mL^2}}$ $M=821 \ kg$
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