Look at the figure below, which shows a possible design for a child's toy. You will be solving for the stability of this toy in an upcoming homework, no calculations are required for this preflight! The designer wants to build a "weeble" (which wobbles, but doesn't fall down :-) It is a single, solid object, the shape is a perfect hemisphere (radius a) on the bottom, glued to a solid cylinder on top. The CM is shown, it is "h" above the base.
For now - we just want you to look at the situation and visualize it. It sure looks like a 3-D object, yet we are in Taylor's chapter called "one-dimensional systems". Can we consider this situation to be a 1-D problem? (If so, why? If not, why not?)