14. Ball A is thrown horizontally from the top of a tower at the same instant that an identical ball Ball B is dropped vertically. Ignore air resistance. a) Which object will hit the ground first? Explain. (5 points) b) Which object is traveling faster when it hits the ground? Explain. (5 points) 15. Would your answers to the previous question change if ball B was twice the mass of ball A? Why? (5 points)