For the following motion diagrams, draw an arrow to indicate the displacement vector between the initial and final positions. a)0 is at the top right and drops off to the left gradually to 5 b)starts at 0 at the bottom right and raises up to form the maximum of a parabola and start a decent down for 2 seconds. c)Looks like a v with 0 in the upper right hand corner going down to 3 and then up again to 6. I'm not quite sure how to do these. I understand that vectors usually have magnitude and direction as they are vector quantities. But do I just draw an arrow from 0 to the last point with an arrow pointing at that last point? We only briefly went over vectors in our hour long lecture. There's another problem dealing with adding vectors. I know how to do them, but the instructions are: Draw and label the vector sum A+B. I got the first two, but the last problem has the vectors going in opposite directions and of equal magnitude (there's no quantity given). How in the world would you draw such a thing. I mean the net force would be 0 and therefore not have a vector direction or magnitude it would just stay still. So do I just not draw anything?