Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Bus riddle

  1. May 26, 2004 #1
    I was in the bus travelling at 100km/h going to N and i saw another bus going to direction S at the same speed and the same bus

    and when the other bus that was heading S passed by ( it was 80~100cm between the buses )
    i felt the bus shake and heard a swoosh sound ( the window was open on my seat )

    why is that ?
  2. jcsd
  3. May 27, 2004 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Large vehicles, such as buses, push a lot of air out of the way as they move down the road at high speeds. What you heard and felt was this air pushing on your bus. Perhaps I did not get the full meaning of your question.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook