A Ball Is Thrown Upward, And Its Height, H, In Metres Above The Ground After T Seconds Is Given By H(T) = -4.9t²+6.26t+2t20 Calculate The Ball's Initial Velocity. [2] A) B) Calculate Its Maximum Height. [2] C) At What Time Does The Ball Strike The Ground [2] D) With What Velocity Does It Hit The Ground? [1] E) Does The Ball Have Constant Acceleration? Or