Hi.. 1. The problem statement, all variables and given/known data http://data.imagup.com/12/1146557882.jpg If bar A moves right at a speed of x,how does bar B move? 2. Relevant equations speed of the gear(A) * number of teeth(A) =speed of the gear(B) * number of teeth(B) 3. The attempt at a solution as A slide to the right, so the C gear will turn Clockwise (CW);the D Anti CW ,E CW; F anti CW so B will slide to the right. about the spped the B will slide slower than rank A :) thnks in advance.