Harley Quinn uses her baseball bat with 100% efficiency which defies the law of physics as no tool is 100% efficient.
Harley Quinn is a villain in the comics as well as the adapted movie suic_ide squad.
Harley Quinn's choice weapon is a mallet which she later loses for a baseball bat during a fight she got in.
Harley Quinn does not possess any superpowers, but she uses her bat so well that it defies some of the laws of physics.
For example, no tool or machine is 100% efficient, yet Harley Quinn uses her bat with 100% efficiency, thus defying the law of physics.
Learn more about laws of physics at: https://brainly.com/question/12253978