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March 28, 2015

Homework Help: College Physics

Posted by Kimmy on Sunday, November 10, 2013 at 11:50pm.

A wooden bridge crossing a canyon consists of a plank with length density λ = 2.25 kg/m suspended at h = 10.89 m below a tree branch by two ropes of length L = 2h and with a maximum rated tension of 2000 N, which are attached to the ends of the plank, as shown in the figure. A hiker steps onto the bridge from the left side, causing the bridge to tip to an angle of 22.3 with respect to the horizontal. What is the mass of the hiker?

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