The Surprising Mechanics Of A Bow And Arrow

Music by @TheJustinator
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#shorts

[capt.fuzzball]

This is the equivalent to the peasant railgun.

[ElijahBellomy-tirk]

"Well, that explains why my fridge was unexplainably cut in half by a blazingly fast object that was falling from space."

[Liberator]

An arrow does approach the speed of light.
It doesnt get very close though.

[amansavant]

It's almost like any weightless object can easily reach the speed of light with the smallest of flicks

[-zo]

If we ignore the laws of physics, it breaks the laws of physics 😮🤯

[tawagotoCage]

this guy is the proof that you can state dumb facts and still sound smart

gotta love a man with confidence

[Nekros-te]

NASA wasting time with rockets when all they need is a really big bow

[alexey_burkov]

It will not approach speed of light.
Speed will be proportional to energy stored in elastic deformation of bow.
Even if we get rid of weight and drag.

It is just ratio approaching infinity. Mathematicaly.
It means either speed of tips approch 0, or arrow speed approch infinity.
In this case it is tips approch 0.

Moreover this ratio is just a result of parameters combination. It means that ratio itself do not approach infinity. It's parameters approach something, and thus ratio approach infinity.

[GytSlyr]

Your videos are like the portal 1 and 2 demonstration videos and it amazing

[joshpierce]

I think you’re confusing the speed of the arrow with the ratio between the lateral speed of the string and the speed that the bow expands. The ratio might approach infinity, but that’s because the speed at which the bow is expanding is approaching zero. So essentially you could have 1 m/s over ~ 0 m/s and that would equal ~infinity, but the actual speed of the arrow will be 1 m/s.
For clarification, I’m not saying that 1 m/s is the actual speed of an arrow. Just using that speed as an example

[haramarhara]

this is why you dont dry fire a bow. Without the weight of the arrow to hold it back, all the force goes back into the bow, breaking it

[cougar]

The sound designer really made a pg3d level theme just for one video

[jucom]

I mean that is assuming the tips don't slow down but conservation of energy exists so you can at most fire an arrow with the elastic energy stored in the bow.

[yesseru]

Wow, its almost like when you accelerate something without mass, it goes at the speed of all things without mass.

[jaronsherwood]

The slope approaches infinity, however the slope you are referencing is not a direct comparison to velocity. In fact even in a vacuum Newton’s first law still applies. It is dependent on the mass of the arrow and draw weight, not just air resistance to figure out how much energy is transferred into the arrow. Even ignoring the mass of the arrow the infinity is the ratio between the tip and the arrow speed, not actually the velocity magnitude!

[Mileal]

When the physics teacher says you can ignore friction

[_adielj]

So, in space, if you throw an arrow to the moon it will travel at the speed of light? I guess termodynamics doesn't allow that to happen

[jacobcomongore]

When infinity pops out of your physics equation you know you’ve either done something wrong or your model is wrong in some way.

[erinsharing]

when are you gonna get back into modelling? your work on the nerd emoji was truly inspiring

[moritzterjung]

The speed of the arrow does not approach infinity. Just the rate of the two speeds and thats because you are dividing by a number that aproaches zero.
And that doesn't really tell you much about the actual speed of the arrow because any number approaches infinity if you divide it by another ever decreasing number.