# Velocity vector diagram help

Here we are looking down on a racetrack with straight sections and semicircular ends. A car is going around the track and maintaining constant speed.

For each one of the numbered positions: Draw diagrams showing the velocity vector for the car.

I will post my diagrams on a separate reply. I just need to know if I am getting this concept down (this is yet another example concept from the book I am not getting). My question is do I have a total of three diagrams. One would be for #1 as Vi and #2 as Vf. Then the second diagram starts with #2 as Vi and #3 as Vf. The third diagram as #3 as Vi and #4 as Vf. I should have a reply with my diagrams on it

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HallsofIvy
Homework Helper
It's not clear to me WHAT you are trying to do.

There are 4 posions given and you say:
For each one of the numbered positions: Draw diagrams showing the velocity vector for the car.
That should imply 4 diagrams, each showing the velocity vector at that point.

In your second post, you show three diagrams, showing the &DELTA;v- the change in velocity vectors. You didn't say anything about having to show that.

So wouldn't a a velocity vectory diagram have delta V, Vi, and Vf.

Actually is the vector diagrams just the tangent line to the point 1, 2,3,4 on the racetrack?

HallsofIvy