16.20: A uniform 10.0 m long plank is pivoted about its
u4t37lhedp7uy ibs (q5izol 1 d 71u9xcenter of gravity. A mass M1 then is placed at the left edge of the plank and a second mass M2 is placed 1.0 m from the right end. This system is in static equilibrium (shown). If each mass now is moved 2.0 m closer to the center of the plank, which one of the fol
u(shi eb139uuzl7p7i 1 5tlxdq o7yd 4lowing choices best describes the subsequent motion of the plank?