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July 7, 2015

Homework Help: Physics

Posted by Kelsey on Wednesday, November 16, 2011 at 6:40pm.

Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angle of 27.3 above the horizontal. One child, with a mass of 40.8 kg, is hanging 1.24 m along the branch from the tree trunk. The other child, with a mass of 36.3 kg, is hanging 2.09 m from the tree trunk. What is the magnitude of the net torque exerted on the branch by the children?
I would assume that the axis is located where the branch joins the tree trunk and is perpendicular to the plane formed by the branch and the trunk.

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