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 24.3° above the horizontal. One child, by a mass of 45.6 kg, is hanging 1.20 m along the branch from the tree trunk. The other child, with a mass of 35.7 kg, is hanging 2.13 m from the tree trunk. What is the magnitude of the net torque exerted on the branch by the children? Suppose that the axis is located where the branch joins the tree trunk and is perpendicular to the plane formed with the branch and the trunk.