Mary and Alex ride a 32ft diameter carousel. Mary sits on the outer section 14.5ft from the center. Alex sits on the inner section 4ft from the center. What is Mary's centripetal acceleration [tex]a_{M}[/tex] compared to Alex's centripetal acceleration [tex]a_{A}[/tex]? Give your answer as a multiple of [tex]a_{A}[/tex] (ie, [tex]a_{M}[/tex] = (your answer) times [tex]a_{A}[/tex], where "your answer" is the multiple)