Final answer:
The person standing near the edge of the spinning merry-go-round takes the longest amount of time to complete one circle.
Step-by-step explanation:
In a spinning merry-go-round, the person standing near the edge takes the longest amount of time to complete one circle.
This is because the person near the edge has a larger distance to travel compared to the person standing near the center.
Since the merry-go-round rotates at a constant speed, the person near the edge has to cover a larger circumference, resulting in a longer time to complete one circle.