“It’s not the length of the vector that matters, it’s how you apply the force.” [seen on a pink T-shirt sported by a female freshling in the ISR cafeteria]
I was highly offended by this. Not because it’s raunchy in the first place, nor because it combines physics and sexual innuendo, but because the physics involved is totally inaccurate!
How you apply the force directly determines the length of the vector! The two are not separable! Unless she’s trying to say something about how the angle at which the force is applied is more important than the magnitude of the vector . . . but that’s just getting into rather odd territory . . .
Suffice it to say that the next time I make a dirty physics joke, it will be clever, it will be funny and you had damn well better believe that the physics will be CORRECT!