You are presented with the quiz "If an object is what by a foot, then force is exerted on that object?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if an object is kicked then force is exerted on that object" and "kicked Ball A kicked ball is one struck by a player's foot, or leg below the knee". 

So, what's the best answer to the question?


 

   struck        