5. A rock is thrown straight up from a 224-foot tall cliff. The height of the rock as a
function of time is given by the equation h(t) = -16t² + 80t+224. How many
seconds until the rock hits the ground?

5 A rock is thrown straight up from a 224foot tall cliff The height of the rock as a function of time is given by the equation ht 16t 80t224 How many seconds un class=