Recent content by Yuli10

this is what i have tried to do, some ideas of mine.

Homework Statement https://www.physicsforums.com/attachment.php?attachmentid=36163&stc=1&d=1307210405" Homework Equations i wasn't able to solve task no. 2. The Attempt at a Solution at task 1 i got A=square root of (12/a)