Revised Model

In our revised model we take the relation between d and v to be D = v + v2/x where x is to be determined by experiment. We saw that x = 20 gave a non-realistic answer v = My best experiment gave x=80 thus v = which is about 30 mph and a distance of 14 yards which is quite realistic

This is only the end of the first iteration.

We must now go back to the assumptions and produce better models. Each time we build on what has gone before.

The important thing is that we start simple and become more complex. We do not start complex