Question

question #5
5a. explain the decisions the driver of the black sedan has to make when approaching the roundabout.
when the black sedan entered the roundabout, i notice that it was able to:
it was able to do this because:
5b. explain why the actions of the white sedan following it are different.
when the white car approached the roundabout, it had to:
it had to do this because:

Explanation:

5A: The driver of the black sedan must decide on speed - reducing speed to safely enter the roundabout, check for on - coming traffic in the roundabout to merge safely, and choose the correct exit. It was able to enter as there was a gap in traffic and it adjusted speed appropriately.
5B: The white sedan's actions may be different due to traffic conditions at the time it approaches. It may have to wait longer if the black sedan is still in a position that blocks its entry, or it may have to adjust speed more significantly if traffic flow has changed.

Answer:

5A. Decide on speed, check for traffic, choose exit. Entered due to traffic gap and speed adjustment.
5B. Actions differ due to changing traffic conditions at approach time.