We throw a glow stick off a tall cliff to watch it fall away into darkness. The fact that it glows makes it easy to track; we determine that its height from the ground in meters after t seconds is s(t) = 16t^2 + 96t + 128.

A) How high off the ground does the glow stick start? Why?

B) At what time is the glow stick at a height of 256 meters? Why?

C) How fast was the glow stick traveling after 3 seconds? Why?