1. The problem statement, all variables and given/known data W(oa) = -5k α(oa) = 3k B = 30 deg B(dot) = -2cos 30i + 2sin30j = Vrel b(double dot) = 4cos30i - 4sin30j) 2. Relevant equations Va = Woa x Rao + Vrel 3. The attempt at a solution This is such a simple problem and I don't know why im messing it up. Im just trying to figure out the Va part right now. I know the answer from the back is 4.38i + 7.58j I did Va = W(oa) x R(ao) + Vrel solving for Va. Va = -5k x 1.25(-cos30i + sin30j) + (-2cos 30i + 2sin30j) Va = 3.125i + 5.4j - 1.73i - 1j Va = 1.395i - 4.4j This is what im getting for Va but the answer is wrong. Can anyone point me in the right direction please?