If a train travels at a speed of 10 m/s, how far can it go in 5 hours?

To determine how far a train can travel in a given time at a constant speed, you can use the formula:

Distance = Speed × Time

First, convert the time from hours to seconds since the speed is in meters per second. There are 3600 seconds in one hour, so in 5 hours:

5 hours × 3600 seconds/hour = 18,000 seconds

Now, apply the distance formula using the speed of 10 m/s:

Distance = 10 m/s × 18,000 seconds = 180,000 meters

To convert this distance from meters to kilometers, remember that 1 kilometer equals 1,000 meters:

180,000 meters ÷ 1,000 meters/kilometer = 180 kilometers

Thus, the train can travel 180 km in 5 hours. Selecting this answer demonstrates an accurate understanding of converting units and applying the fundamental distance formula correctly.