A 50.5-g golf ball is driven from the tee with an initial speed of 40.4 m/s and rises to a height of 26.5 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 6.02 m below its highest point? A: 28.0838075 J b: ???? what do i do for part b?