Make an MPI program that computes how far an object falls on Earth if it
falls for 100 seconds.  Use the rectangel rule from 
http://en.wikipedia.org/wiki/Numerical_integration.

Your program should work for any number of worker programs.

Things to turn in:
* The code
* The answer computed by the code
* A runtime chart showing wall time for #procs 1 ... 10
Due:  Dec 3rd, -10% per day after.