1. The problem statement, all variables and given/known data The 3.0 kg rod has a length of 80 cm. The 4.0 kg rectangle attached to the rod has negligible dimensions. The entire object rotates counterclockwise about the bottom of the rod. Determine the angular speed of the apparatus at the instant the rod is horizontal. https://gyazo.com/9d0bb4ce2fed98b192f173a918549f60 ^image 2. Relevant equations mgh = potential energy ( w^2 * i ) * .5 = rotational energy i = moment of inertia moment of intertia for rod rotated on end = (m * L^2) * .333 L = length m = mass w = angular speed THE ANSWER SHOULD BE 5.19 rad/s 3. The attempt at a solution *For the height, I found the center of gravity which is .63 meters, i think the length stays .8 though mgh = (w^2 * i ) * .5 mgh = (w^2) * (m * L^2) * .333 * .5 7 * 10 * .63 = ( w^2 ) * (7 * .8 * .8 ) * .333 * .5 44.1 = (w^2) * .746 59.115 = (w^2) 7.68 = w 7.68 rad/s ????????