1. The problem statement, all variables and given/known data hopefully the writing is readable: http://i.imgur.com/VJ8vN.jpg All three if possible. 2. Relevant equations none 3. The attempt at a solution To be completely honest, I missed that whole week of lectures due to personal problems and I've had no chance to talk to an instructor or a classmate for some notes before this is due. I'm perfectly fine with just tiny tips here and there. http://i.imgur.com/4AknY.jpg My lame attempt at solving the first.