Final answer:
Based on the information about similar scenarios of a ship and a cyclist, Jay would likely come to a complete stop at 30 minutes into his walk, as this matches the pattern of motion described in the examples provided.
Step-by-step explanation:
Based on the provided information, we can determine what happens to Jay's motion at 30 minutes into his walk. If we compare Jay's walk to the described situations of the ship and the cyclist, it seems Jay may be experiencing a scenario similar to the ship scenario.
According to that scenario, the ship maintains a constant velocity before beginning to decelerate at a constant rate, eventually coming to a stop. In the case of Jay, the phrasing suggests that at 30 minutes, a change happens in his motion.
He does not maintain a constant velocity or accelerate; instead, he may experience a sudden deceleration or come to a stop. Considering the ship's motion from the provided solutions, the most likely answer is that Jay comes to a complete stop (D), given the information indicates deceleration leading to a halt.
We have to choose the answer that most closely matches the scenarios described, and the option that Jay comes to a complete stop fits best with the examples of the ship and cyclist, which both involve coming to a rest after a period of deceleration.