100 yards
The first roller coaster was actually a coal mining car in NY in 1895 that ran 18 miles down hill and would hit a 100 MPH. People came up to the hill where it was located and rode it down. Roller coasters became popular after WW1 and there were over 2,000 built in the United States in the early 1900's. In 1927 the Coney Island roller coaster opened. The early roller coasters were very dangerous and many people got hurt on them. They are called roller coasters because wheels are used for them to coast on a track. It is all done with gravity.
The most used speed on roller coasters is 80 MPH, but a few go between 100-150.
It depends on the speed. At 10 miles per hour 100 miles is 10 hours. At 100 miles an hour it is 1 hour. At 1000 miles an hour it is 0.1 hour (= 6 minutes).
Divide 317 miles by 100 miles per hour to obtain: 317 miles / (100 miles per hour) = 317 miles * 1 hour / 100 miles ≈ 3.17 hours
Yes 100% cuz I tried
Rate = Distance divided by Time Rate = 100 miles/ 1 hour = 100 miles per hour
18.7 miles in 100 seconds = 673.2 miles per hour.
Err, 100 miles per hour!
100 miles at 100 mph would take 1 hour
About 62 miles.
6/10 ( 36min) of an hour.