Physics: Principles with Applications
7th Edition
ISBN: 9780321625922
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Chapter 9, Problem 8P
The two trees in Fig. 9-51 are 6.6 m apart. A backpacker is trying to lift his pack out of the reach of bears. Calculate the magnitude of the force F that he must exert downward to hold a 19-kg backpack so that the rope sags at its midpoint by (a) 1.5 m, (b) 0.15 m.
Figure 9-51
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Chapter 9 Solutions
Physics: Principles with Applications
Ch. 9 - Prob. 1OQCh. 9 - Describe several situations in which an object is...Ch. 9 - Prob. 2QCh. 9 - You can find the center of gravity of a meter...Ch. 9 - Prob. 4QCh. 9 - A ground retaining wall is shown in Fig. 9-36a...Ch. 9 - Can the sum of the torques on an object be zero...Ch. 9 - A ladder, leaning against a wall, makes a 60°...Ch. 9 - A uniform meter stick supported at the 25-cm mark...Ch. 9 - Why do you tend to lean backward when carrying a...
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