6. Intro to Forces (Dynamics)
Equilibrium in 2D
Problem 12.8a
Textbook Question
Textbook Question(II) The two trees in Fig. 12–54 are 6.2 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.
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