If I'm running 8 miles on a 200 meter track at 8 min pace on a cruise ship track with the ship going 25mph, how fast and far will the garmin say i've run?
If I'm running 8 miles on a 200 meter track at 8 min pace on a cruise ship track with the ship going 25mph, how fast and far will the garmin say i've run?
THIS MADE ME LOL.
Does a cruise ship actually exist that has a 200m track?? that would be cool.
Indoor or outdoor track?
Is the treadmill going exactly the same speed as the ship?
I don't think the ship will take off.
need to take into account ship's course and speed / direction of wind and current
Why would you use the garmin on a fixed distant track? Can you not do the math with just a watch?
el mastero wrote:
Why would you use the garmin on a fixed distant track? Can you not do the math with just a watch?
I can tell you why. It would get pretty tiresome and you could easily lose track counting more than 64 laps.
notlost wrote:
If I'm running 8 miles on a 200 meter track at 8 min pace on a cruise ship track with the ship going 25mph, how fast and far will the garmin say i've run?
you will have run 25.6 miles at 2:24 minutes per mile.
Pwned.
i'm actually not sure of the exact distance of the track yet. i know it's outdoors. i'm actually just curious as to what the map will look like and whether it will give me any sort of distance except how far the ship has traveled during my run.
I think it will be closer to 29 miles.
Run for time. Not laps.
(8+25*64/60)*(60/64) = 32.5 MPH
(8+25*64/60) = 34.7 Miles
It would be off because of accuracy issues.
The distance will vary depending on the shape of the track.
Assuming:
Garmin has perfect accuracy
Constant running speed
Ship is doing constant 25 mph relative to the earth, not the current
Shortest/slowest possible:
26.67 miles / 25 mph
No matter what direction you run, you're going mostly "forward" with the ship. The shortest possible distance is if the track is a very narrow oval "parallel" to the ship, such that you essentially run back and forth along the ship. In this case you alternate running (25+7.5) mph and (25 - 7.5) mph for equal time periods.
Farthest/fastest possible:
27.84 miles / 26.1 mph
To add distance you need to run in a direction other than parallel to the ship's movement. This adds wiggle to track that the garmin will plot. The most you can do is rotate the track from before 90 degrees, so that all or your running is perpendicular to the ships motion. In this case, your speed will always be sqrt(25^2 + 7.5^2) mph, alternating in different directions so that your gps track forms a sawtooth pattern.
note that in the first case, the total distance and average speed shown by the garmin will be 26.67 & 25 for any running speed under 25 mph since you're always moving forward in a straight line relative to the earth.
also, the real world solution is to run for time.
The unit for speed of vessels and aircraft is nautical miles or Nm. 6 miles is roughly 5 Nm. 1 Nm is roughly 1 second (360 degrees, 1 degree = 60 minutes, 1 minute = 60 seconds) at the equator.