Final answer:
The average velocity of the Shanghai maglev train for the 30 km trip taking 8 minutes is 225 km/h, which is option (b).
Step-by-step explanation:
The student's question pertains to calculating the average velocity of the Shanghai maglev train, which connects Longyang Road to Pudong International Airport, covering a distance of 30 km in a timespan of 8 minutes. To calculate average velocity, we divide the total displacement by the total time taken for the journey. Since the given time is in minutes, it should first be converted to hours for the velocity calculation in km/h.
Firstly, convert 8 minutes to hours:
8 minutes ÷ 60 minutes/hour = 0.1333 hours.
Now, calculate the average velocity using the formula:
average velocity = total displacement / total time taken,
which yields 30 km ÷ 0.1333 hours = 225 km/h.
Therefore, the average velocity of the train is 225 km/h, which corresponds to option (b).