Suppose a 35.0 kg child sits 1.16 m to the left of center on the same seesaw as the problem you just solved. A second child sits at the end on the opposite side, and the system is balanced.
(a) Find the mass of the second child.
mchild 2 =
Use the pivot as the reference point because then two of the four forces on the plank exert zero torque. Which two? Since the plank is at rest, the torques due to the other two forces must balance kg
(b) Find the normal force acting at the pivot point.
Fn = N