1. The problem statement, all variables and given/known data I have posted the problem in an attachment. 2. Relevant equations Aa = Ab + Aab (acceleration at a is equal to the the acceleration of b plus the acceleration of A with respect to B) Aa = ωob x [ωob x Rob] + [αab x Rab] Va = Vb + Vab 3. The attempt at a solution First, I got the relative positions (Rob and Rab) of O with respect to B (-0.1 j) and A with respect to B (-0.229i - 0.1j) I feel pretty good about this being correct Now, when I plug in to the 2nd equation I have in the "relevant equations" part and do a lot of cross products, I get the following: Aa = -1000j - 0.229αab j + 0.1αab i Now I am unsure how to proceed from here. I still have not found any of the three items that I'm asked to find and kind of stuck on where to go next. Any help is much appreciated.