(solution) A door of uniform density weighs 205N and is 2m x 3m. A doorknob

(solution) A door of uniform density weighs 205N and is 2m x 3m. A doorknob

A door of uniform density weighs 205N and is 2m x 3m. A doorknob is attached to the door as shown in the attached picture. If the doorknob weight 3.15N and is located 0.166m from the edge, where is the center of gravity? The center of gravity is located how many centimeters toward or away from the doorknob as measured from the center of the door?