I have the question at http://viewmorepics.myspace.com/index.cfm?fuseaction=viewImage&friendID=128765607&imageID=1423959807 I have to determine what happens if each force is applied. This is what I think. If force one is applied, the yoyo will rotate clockwise, and friction will push it to the right. If force three is applied, the yoyo will rotate counterclockwise and friction will push it to the left. If force two is applied, the forces on the yoyo is zero and it will not move since friction and the force will balance each other out.