Question

A high-speed train in Japan travels a distance of

300. kilometers in 3.60 × 10^3 seconds. What is
the average speed of this train?
(1) 1.20 × 10^–2 m/s (3) 12.0 m/s
(2) 8.33 × 10^–2 m/s (4) 83.3 m/s

Answer 1

The average speed of the high-speed train in Japan is 83.3 m/s, which is found by dividing the distance of 300,000 meters by the time of 3.60 × 10^3 seconds.

Step-by-step explanation:

To calculate the average speed of the high-speed train in Japan, we need to use the formula for speed:

Average Speed = Total Distance / Total Time

The train travels a distance of 300 kilometers in 3.60 × 103 seconds. To find the speed in meters per second (m/s), we firstly need to convert 300 kilometers to meters:

• 300 kilometers = 300,000 meters

Now we divide the distance by the time:

Average Speed = 300,000 meters / (3.60 × 103 seconds) = 83.3 m/s

Therefore, the average speed of the train is 83.3 m/s, which corresponds to option (4).

Answer 2

Distance traveled = 300 km
Time of travel = 3.6 x 10³ s

Average speed = distance/time
= (300 x 10³ m)/(3.6 x 10³ s)
= 83.3 m/s

Answer: (4) 83.3 m/s