Example Problem Solutions from:

Physics for Scientists & Engineers

by Douglas C. Giancoli
Volume 1, 4th Edition, Pearson Prentice Hall, Upper Saddle River, NJ, 2008

Chapter 8: Conservation of Energy

"CHAPTER-OPENING QUESTIONS - Guess now!
A skier starts at the top of a hill. On which run does her gravitational potential energy change the move: (a), (b), (c), or (d); of are the (d) all the same? On which run would her speed at the bottom be the fastest if the runs are icy and we assume no friction? Recognizing that there is always some friction, answer the above two questions again. List your four answers now."

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