I am totally lost :(
Homework Statement
http://i578.photobucket.com/albums/ss223/fuyu0201/feb61411.jpg
Homework Equations
umm, i have no idea. the teacher didnt really teach us this yet.
The Attempt at a Solution
i just added all the lengths together lol, but that was wrong.
Homework Statement
1. A ball is thrown upward. After reaching a maximum height, it continues falling back toward Earth. On the way down, the ball is caught at the same height at which it was thrown upward.
If the time (up and down) the ball remains in the air is 2.1 s, find its speed when it...