I have a physics problem and it's below.

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

3 answers

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.