Just started season 8 and got up to episode 4 last night. You can correct me if issues were discussed prior to my post.
Season 8 starts with Caitlin saying Barry can run at 4000 miles per hour (Just over Mach 5.2), which I will assume is casual when he has complete speed. Funnily enough, Barry saves the passengers in two colliding trains, stated to be 50 miles away from his location. Caitlin stated he saved everyone in 20 seconds, Barry corrected her with 12 seconds. Assuming she's just referencing Barry getting there and saving everybody, 50 miles / 12 seconds =
15,000 miles per hour. Assuming she's referencing Barry going there and coming back, 100 miles/12 seconds =
30,000 miles per hour. Through the authors, Caitlin has already proven her ability to make false statements by roughly 3-7.5 times in the first 2 minutes and 6 seconds of the first episode.
In episode 3 or 4, he is estimated to be at 5% of his speed by himself and Damien Darhk.
5.2/x = 5/100 , x = 104. So by Caitlin's own statement, Barry at full power should be at Mach 104. Then after Jefferson removes 95% of his speed, he has two minutes
to accelerate to Mach 20, given a distance of 40,000 miles.
The simple acceleration formula is a = (v_f - v_i) / Δt
a = (6805.4 meters per second (Mach 20) - 0m/s) /120s
a = 56.71m/s^2 or 0.035238 mi/s^2
The formula for finding distance (displacement) is s = ut + ½at2, where s = displacement, u = initial velocity, a = acceleration, t = time
s = 0m/s(120s) + 1/2(56.71m/s^2)(120s)^2
s = 0 +1/2(56.71m/s^2)(120s)^2
s = 408312 meters or 408.3 kilometers.
Barry could not possibly complete the feat as stated. Using the same formula above but solving for time given the provided distance, and calculated accelerations, Barry could accomplish the feat in roughly 20 minutes, not 2.
However, this also brings up the issue of Barry's speed relative to his power level. If Barry can
reach Mach 20 at 5% power, then Mach 20/x = 5/100 = Mach 400 at peak power, which is another contradiction to Caitlin's statement.
This contradicts several things.
-Barry destroys the world
accelerating to Mach 20, yet Caitlin says he can travel at Mach 5.2 and essentially causes no problems. This puts any other "Mach x" feat under scrutiny even though the concept of a "speed wake" was just asspulled this season
-On the
planetary view in the same episode as the feat, Barry and Eobard cross Spain and head into France in a second, maybe 2, which is a Mach 3k+ or Mach 1k+ feat (at 5% power)
-Barry at "Mach 7" was affecting the rotation of the Earth
-Barry in season 2 needed to run at
Mach 3.3 to cross a bridge
-Literally, any previous feat to include outrunning natural lightning in the first season
-In season 7 he saved a stadium of 20,000 people in roughly a minute or so which is a Mach 4-6k feat
Every bit of information in this series is disproven by the actual actions.
Oh and Barry becoming casually continental or moon level via kinetic energy whenever plot demands it is memes.
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