- 21 Jul '08 09:51 / 1 edit

2 seconds:*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?

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 - 21 Jul '08 11:13

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.*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