Featherweight waif Kate Moss demonstrated a rather scant grasp of basic physics when she attempted to help move a large Mercedes-Benz stuck in the mud near her home in the English countryside. Darling, remember that momentum is the product of velocity times mass, of which you have very, very little.
But it was brave of Moss to try. The look of considerable anguish on her face says it all ... or was she thinking of Pete Doherty? Dealing with him, now that takes strength.