coercive vs forceful

coercive

adj
  • Displaying a tendency or intent to coerce. 

  • Such that the ratio of |F(x)| to x approaches infinity as x approaches infinity. 

forceful

adj
  • Capable of either physical or coercive force; powerful. 

How often have the words coercive and forceful occurred in a corpus of books? (source: Google Ngram Viewer )