Haruspex -- Thank you! THAT was it! I was plugging in 85 m/s as the initial velocity, not calculating the initial velocity at 2 s and plugging that in. UGH! Smh. Thank you everyone for commenting and being willing to try to help! :)
1. A space vehicle accelerates uniformly from 85 m/s at t=0s to 462 m/s at t=10s. What is avg acceleration? How far did the space vehicle move from t=2s to t=6s.
2. Got the avg accel easily enough w basic equation for accel. Problem is conceptual with the displacement portion of the question...