Science Memes

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launch him anyway (mander.xyz)

submitted 6 months ago by [email protected] to c/[email protected]

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[–] [email protected] 68 points 6 months ago* (last edited 6 months ago) (7 children)

If your leg has a mass of 2kg, 1.1×10^10 J of kinetic energy would require your leg to be moving at about ~~150~~ 100 km/second not faster than the speed of light.

TLDR: Their math is shit.

[–] [email protected] 2 points 6 months ago

Yeah, their answer just intuitively seems very wrong. The ratio between the kid's weight and your foot's weight should be equal to the ratio between their final speed and your foot's required speed. Ridiculous.

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