By my username, it's apparent I'm not very proficient in Physics! I'm on my 2nd day of Intro in college...and I am already clueless! Today, our professor gave us a demonstration of inertia by pulling a tablecloth from a table covered with dishes. It was a great stunt, but I'm totally blank. I realize that the dishes did not come crashing down because of inertia - the dishes were at rest and tend to stay at rest. However, if he had pulled the tablecloth SLOWLY, the dishes WOULD have moved. In fact, they even jiggled a little in class! Why is this? Why does speed matter? If inertia is a LAW, why don't the dishes stay put no matter how quickly or slowly you pull the cloth? Please forgive my ignorance!