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Posers and Puzzles

Posers and Puzzles

  1. Subscriber sonhouse
    Fast and Curious
    21 Jul '08 04:23 / 1 edit
    Assuming constant acceleration (which we all know not to be true in a real quarter mile run) how many G's do you have to achieve to go through the quarter mile in 2 seconds?
    How many G's to do the quarter mile in 1 second?
  2. 21 Jul '08 09:51 / 1 edit
    Originally posted by sonhouse
    Assuming constant acceleration (which we all know not to be true in a real quarter mile run) how many G's do you have to achieve to go through the quarter mile in 2 seconds?
    How many G's to do the quarter mile in 1 second?
    2 seconds:

    average velocity = 1/8 mile/sec
    max velocity = 1/4 mile/sec
    acceleration = from 0 to 1/4 mile/sec in 2 seconds, so acceleration = 1/8 mile/sec^2 ~ 200 m/sec^2 ~ 20 g


    1 second:

    average velocity = 1/4 mile/sec
    max velocity = 1/2 mile/sec
    acceleration = from 0 to 1/2 mile/sec in 1 second, so acceleration = 1/2 mile/sec^2 ~ 800 m/sec^2 ~ 80 g
  3. Subscriber sonhouse
    Fast and Curious
    21 Jul '08 11:13
    Originally posted by David113
    2 seconds:

    average velocity = 1/8 mile/sec
    max velocity = 1/4 mile/sec
    acceleration = from 0 to 1/4 mile/sec in 2 seconds, so acceleration = 1/8 mile/sec^2 ~ 200 m/sec^2 ~ 20 g


    1 second:

    average velocity = 1/4 mile/sec
    max velocity = 1/2 mile/sec
    acceleration = from 0 to 1/2 mile/sec in 1 second, so acceleration = 1/2 mile/sec^2 ~ 800 m/sec^2 ~ 80 g
    Close enough! It kinda shows we seem to be pretty much maxed out accel-wise, eh. They are already pushing 5 g's now so at some point they would start to black out, so I don't see the times getting under 4 seconds in the foreseeable future.