a ball is launched with an initial velocity of 24.4 m/s at a 45\deg angle from the top of a cliff that is 10.0 m above the water below. Use g = 9.80 m/s2 to simplify the calculations. Note: You could answer these questions using projectile motion methods, but try using an energy conservation approach instead. (a) What is the ball's speed when it hits the water? ____m/s (b) What is the ball's speed when it reaches its maximum height? ____m/s (c) What is the maximum height (measured from the water) reached by the ball in its flight? ____m