So, 100 km/h = 27.8 m/s. 36 m/s in 0.956 s is an average acceleration of 29.1 m/s^2. Divide that by 9.8 m/s^2 to get 2.96 g.
$ units -t '100 kph / (.956s) / gravity'
2.9629132 $ qalc -t 100km/h / 0.956s to gee
2.9629132 gees
(where -t is for terse mode; by default it expands unit abbreviations and adds parentheses so you see whether it did what you wanted)The reason I recommend it is because it does so much more, I really love this utility since discovering it about a year ago. Example of using time notation combined with uncertainty and unit conversion:
> (18:41 - 09:00+/-00:30) hours * 250 W to kWh
(((1121 / 60) - (9±0.5)) * hour) * (250 * watt) =
approx. (2.4208333±0.125) kW*hWhat I meant to say is that, if one uses a featureful calculator like qalc, then you get unit conversion included without needing two separate utilities. Of course, if you've used a(n obscure) calculator for decades then it may be easier to learn to use a separate unit convertor instead
So, from my viewpoint, qalc is the "separate utility" that I don't need ;-)
If they can get a car to do 9Gs for 2 seconds we're looking at about 635Km/hr !!
A typical car crash at 20 mph is around 20 G deceleration.
If you look at racing car crash data, one study reports 50 G as approximately the threshold for when you start to see frequent brain injuries.