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Quick Answer: 
  1. $0.52\textrm{ rad/s}$
  2. $KE_i = 370\textrm{ J, } KE_f = 2.0 \times 10^2 \textrm{ J}$

Giancoli 7th Edition, Chapter 8, Problem 67

(3:16)

Chapter 8, Problem 67 is solved.

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Comments

Hello Mr. Dychko,
I just would like to point out that while you entered the correct formula into the calculator, in the written equation you forgot to square 3.0m in the last part of part "B".

Thank you for your work!