A spectacular simplification occurs in the expression for the work
performed by gravity. Since
the work performed by gravity is given by
Thus the work performed by gravity depends only on the
amount by which the vertical location of the object changes.
This is as far as we reached in class. I have included additional
material which will be useful for you to read through before solving the
problems for next week. I will cover this material in class on Monday 10/6/97