tetherball

i remember back in the day when i attended Kahala Elementary school, we used to play tetherball everyday at recess.  i never really understood the whole physics behind tetherball until we learned it this past week in physics class.  all i remember was hitting the ball around the pole really hard.  this past week i learned that the ball swings in a conical pendulum the same way the airplane flew around on the string and how the pig was supposed to fly.  when the object flies in this way it is called a horizontal circle, although the circle is never completely horizontal.  i learned also that there is two types of velocity, linear and angular, both are completely separate and cannot be mistaken for the other.