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  1. aaaaaaaaaa aaaaaaaaaa

    Here's a good brain exercise for some bronies: Rainbow Dash flies horizontally at a constant speed of 10 m/s. At t = 0, she begins to flap her wings harder, giving her a constant horizontal acceleration of 8 m/s^2. After how many seconds will she reach Mach 1, producing a Sonic Rainboom? Assume Mach 1 is 330 m/s; ignore all drag effects.

    Sunday, 29-May-11 22:40:36 UTC from web
    1. Jonathan Burgess Jonathan Burgess

      @edman I read "Brain exercise" and immediately stopped.

      Sunday, 29-May-11 22:42:27 UTC from web
      1. aaaaaaaaaa aaaaaaaaaa

        @nvrrmbr It's actually not too bad. It's a single-equation problem. :)

        Sunday, 29-May-11 22:46:39 UTC from web
        1. Jonathan Burgess Jonathan Burgess

          @edman I'm only in Algebra 2! Don't you use your fancy mathematics on me!

          Sunday, 29-May-11 22:49:52 UTC from web
          1. aaaaaaaaaa aaaaaaaaaa

            @nvrrmbr Haha, no need to worry then. Also - math gets so much cooler after Algebra 2; I'm sure you'll enjoy it! :D

            Sunday, 29-May-11 22:52:39 UTC from web
    2. Steve D. Steve D.

      @edman 40 seconds

      Sunday, 29-May-11 22:44:08 UTC from web
      1. aaaaaaaaaa aaaaaaaaaa

        @delc17 A winner is you! Want another problem? I think it might be more fun to do a harder problem involving the rainboom effect itself. :D

        Sunday, 29-May-11 22:47:38 UTC from web
        1. Steve D. Steve D.

          @edman I'm on my phone without access to pen and paper. Some other time

          Sunday, 29-May-11 22:49:24 UTC from web
    3. Shelltoon Shelltoon

      @edman 5 seconds? I don't know.

      Sunday, 29-May-11 22:45:46 UTC from web
    4. Ellis Ellis

      @edman I can actually work that out I just need a moment... and a calculator.

      Sunday, 29-May-11 22:55:00 UTC from web
      1. aaaaaaaaaa aaaaaaaaaa

        @flutterguy93 Go for it. I BELIEVE!

        Sunday, 29-May-11 23:03:39 UTC from web