An ox-cart. It's motion depend on what kind of road
it is on, who is driving it, and, of course, the ox. Nothing simple here.
A sheep. It's motion depends on its state of mind.
No simple laws evident here.
An ox-cart. It's motion depend on what kind of road
it is on, who is driving it, and, of course, the ox. Nothing simple here.
A feather. It's motion depends on which way the wind is blowing.
Nothing simple about that.
Examples
What this is an example of