A ball having a mass of around 550 g is moving straight up with the speed of 19 m/s, if it strikes Tinker-bell who is hovering motionless directly above the ball. Tinker-bell grabs the ball, quits flapping her wings, and rides on the ball till it reaches its utmost height. When Tinker-bell consists of a mass of around 820 g, determine how high above Tinker-bell's initial position does she and the ball increase avoiding air resistance?