How is double jumping against the laws of physics?

Friday, September 18th, 2009 | Physics

xshadowghostx asked:


I was playing Spider-man 3 and in the beginning that narrator dude was like “Ok, here we go again, breaking the laws of physics. Practice your double jumping”. Or something to that effect. I have a basic understanding that once an object is in motion it stays in motion until it comes in contact with something else consisting of matter. Can someone that is good at physics go more into depth and explain why double jumping is considered breaking the laws of physics?

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2 Comments to How is double jumping against the laws of physics?

LoopStan/CrunkWaffle
September 19, 2009

I believe that it is against the laws of physics because if you jump again in mid air, there is not enough friction/density to give you more lift. Also, if you were able to double jump because the air was so dense, then, that would leave the problem of jumping high enough to double jump in the first place! Ha ha! So, it cant be done. Well, if you had a jump through platform like Super Smash Bros or something, then you could… Anyway, yeah, that is about why, I am sure there are a lot of other reasons too.

mes64
September 21, 2009

if you are in midair, there is nothing for you to apply a force to in order to propel yourself higher. It has more to do with Newton’s 3rd law than the 1st. “for every action there is an equal and opposite reaction.”

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