Ridiculously simple acceleration and velocity vectors, but I can't get them.... We're supposed to answer a series of questions based on this diagram, but I am so confused by the answers. 1. The problem statement, all variables and given/known data A car travels at constant speed along the curved path shown in the figure below. Five possible vectors are also shown in the figure; the letter E represents the zero vector. These are the 3 questions (along with the correct answers from the key): 1. Which vector best represents the car's acceleration at point 1? answer: E 2. Which vector best represents the car's acceleration at point 2? answer: D 3. Which vector best represents the car's acceleration at point 3? answer: A I don't get these answers at all, first the question tells me the car is traveling at a constant speed, (which I answered in question 1, E) Then it says it's D for question 2, then it's A for question 3? I don't get how these vectors connect together at all, and it's completely stumped me. Thanks.