I was driving in a cabriolet car at the speed of 80mph, while a fly flew in and out of the frame of the car. My question is, How can the fly leave the frame and get back in? Is it possible that it flies at 80mph?


closed as unclear what you're asking by Nic, Abhimanyu Pallavi Sudhir, Brandon Enright, jinawee, user10851 Feb 6 '14 at 16:06

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ This question appears to be off-topic because it is about biology. $\endgroup$ – user10851 Feb 6 '14 at 16:06
  • 1
    $\begingroup$ Maybe relevant. My cousin is a long-time pilot. He has heard of people who wished to have their ashes spread from an airplane. What a mess! The dust blows everywhere and they have a big cleanup job. $\endgroup$ – Mike Dunlavey Feb 8 '14 at 22:50

The fly is carried away within the turbulent motion of the air the moving car generates. Therefore, it stays close to the car (for a short while) and returns without actually having to fly at 80 mph. -> Answer to your second question: No!

A google search for "turbulence around car/obstacle/plane" gives colourful pictures of the wind field around moving objects.


Not the answer you're looking for? Browse other questions tagged or ask your own question.