A small rock sits on the edge of a tall building. A strong wind blows the rock off the edge. The distance, in feet, between the rock and the ground t seconds after the rock leaves the edge is given by d=−16t^2−4t+472. How many seconds after the rock leaves the edge is it 460 feet from the ground? How many seconds after the rock leaves the edge does it hit the ground?

Question

anonymous · Answer

the wind is going to make it fall.....

geerky42 · Answer

Really, Sherlock? Can you show us how?