A rock is thrown into the air from an initial height of 8 feet, with an upward velocity of 48 feet/second. The function h(t) = - 16t ^ 2 + 48t + 8 models the height h (in feet) after t seconds.

What is the maximum height reached by the rock?

When does the rock reach a maximum height? (answer with a fraction)

When does the rock hit the ground?