Shamon holds a 70.0 cm string that is attached to a ball, and he swings the ball around his head faster and faster in a horizontal circle. For some reason, he has decided to do this in a room full of glass windows. The ball has a mass of 0.150 kg, and the string will break if its tension exceeds 50.0 N. Suddenly, the string breaks and the ball crashes through the window. What is the horizontal speed of the ball as it strikes the window?