I think that about the fairest thing you can say is that, for engineering, Calculus and Physics are about equally important. (I am strong biased in favor of Calculus, myself!)
I am a high school senior going into mechanical engineering. I am better then most at physics ( in ap physics 2) but about average at calculus ( im in advanced calculus 1) is one more important then the other and will i be behind other engineering majors in calculus?