What latitude was the person flying along on September 21 at sunset?

Click For Summary
SUMMARY

The discussion centers on determining the latitude of a person flying east at 105 MPH on September 21, witnessing a sunset after 10 hours of flight. The key conclusion is that the latitude must be either 20 degrees N or 20 degrees S, as these latitudes correspond to a 10-hour day length during the equinox period. The calculations involve understanding the Earth's rotation and the relationship between time zones and latitude.

PREREQUISITES
  • Understanding of Earth's rotation and time zones
  • Basic knowledge of latitude and longitude
  • Familiarity with speed and distance calculations
  • Concept of solar time versus standard time
NEXT STEPS
  • Research the effects of Earth's axial tilt on day length variations
  • Learn about the relationship between speed, distance, and time in aviation
  • Explore the concept of solar noon and its implications for timekeeping
  • Investigate how latitude affects climate and daylight duration
USEFUL FOR

Aerospace engineers, geography students, and anyone interested in the relationship between flight paths and solar phenomena.

B Robison
Messages
1
Reaction score
0

Homework Statement


A person flying east on September 21 at sunrise hears the time is 2:00PM Greenwich Time. Flying hour after hour at 105 MPH over nothing but water see the the sun set in only ten hours since sunrise. Along what line of latitude have they been flying.


Homework Equations





The Attempt at a Solution


either 60 degrees N; 20 degrees N; 20 degrees So. or 60 degrees So.
 
Physics news on Phys.org


While I am not sure how to solve (not without drawing a sketch on paper at least) I don't think there can be 4 different solutions. Two at best (and probably one is impossible because of flying over water all the time). Think what distance has been covered in 10 hours, and what part of the full circle it was if the day lasted 10 hours instead of its expected duration.
 

Similar threads

  • · Replies 5 ·
Replies
5
Views
6K
Replies
1
Views
2K
  • · Replies 42 ·
2
Replies
42
Views
4K
Replies
19
Views
5K
Replies
1
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
Replies
1
Views
4K
  • · Replies 15 ·
Replies
15
Views
6K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 34 ·
2
Replies
34
Views
8K