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[-] ProdigalFrog@slrpnk.net 35 points 2 months ago

Possible. Though a B-25 is smaller and much slower than a 737.

[-] HK65@sopuli.xyz 17 points 2 months ago
[-] frezik@midwest.social 1 points 2 months ago

Speed matters more than mass when calculating kinetic energy. A 767 is much, much faster than a B-25.

[-] HK65@sopuli.xyz 3 points 2 months ago

While you're right, the MTOW of a B-26 is around 17 tons, the 767 is 150-200 tons.

So there is a factor of around 10 between them, so if the 767 flies 3 times as fast - which it doesn't, the B-26 cruises at more than 0.35 Mach at close to sea level, and the 767 is not supersonic - that means that the factor from the speed can't be more than about 3 squared, so 9.

So the factors from the weight and the speed are roughly equal IMO.

[-] Anticorp@lemmy.world 1 points 2 months ago

Speed matters more than mass when calculating kinetic energy.

Are you sure about that? An air rifle shooting supersonic aluminum pellets has considerably less kinetic energy than a .22 LR bullet, because of the weight of the bullet. Some air rifles actually shoot their projectile faster than a .22, but they have like 10x less energy upon impact.

[-] evidences@lemmy.world 2 points 2 months ago* (last edited 2 months ago)

I'm no mathlete but looking up the formula for kinetic energy it's K.E. = 1/2 m v^2 so I'm pretty sure velocity is going to have exponentially greater effect on kinetic energy than mass.

[-] Anticorp@lemmy.world 2 points 2 months ago

I guess it's because of the huge difference in weight that we see such a difference in kinetic energy from pellet guns, even though velocity has an exponential impact on the energy. A standard pellet weighs under 14 grains, and a .22 LR bullet weighs 40 grains. Thanks for sharing the formula though. I didn't realize how huge of a contribution velocity makes for kinetic energy, and I'll definitely look for a faster rifle whenever I upgrade my air rifle.

[-] Tar_alcaran@sh.itjust.works 16 points 2 months ago

A 767-200, like the one that hit the tower in 2001, carries roughly 3 Fully loaded B-25s worth of FUEL alone.

[-] espentan@lemmy.world 15 points 2 months ago

Not to mention compared to a 767.

this post was submitted on 21 Oct 2024
432 points (98.6% liked)

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