I have a physics problem and it's below.

<p><img src="/images/1261839453.jpg" width=300>

Well, in a while it would be posted

Hey, the diagram posted later that I expected but it's up now.

-Thanks

a) They are in the same place at the same time where the curves intersect.

b) Can't you read the graph?
Joszi is behind until the curves intersect. How much elapsed time is that?

c) The current is swiftest where the slopes of the lines are greatest.
That happens 6 to 9 km from the start.

To help you with your physics problem, please describe or provide the details of the problem. Simply sharing an image without any context or explanation doesn't allow me to understand what specific physics concept or question you are referring to. Please provide a clear and concise explanation of the problem, and I will do my best to assist you.