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914Driver
914Driver MegaDork
6/29/16 5:06 a.m.

slefain
slefain UberDork
6/29/16 10:11 a.m.

Duke
Duke MegaDork
6/29/16 11:19 a.m.
914Driver wrote:

The part of me that understands Newtonian physics doesn't understand that.

alfadriver
alfadriver MegaDork
6/29/16 11:41 a.m.

In reply to Duke: He's just doing a standing long jump. No magic physics.

RevRico
RevRico HalfDork
6/29/16 12:14 p.m.

Thermite is awesome. The site I used to make this from youtube sucks.

Duke
Duke MegaDork
6/29/16 12:36 p.m.
alfadriver wrote: In reply to Duke: He's just doing a standing long jump. No magic physics.

No, I get it; I see how it works. It just seems like there is a lot of momentum-killing back-and-forth with the bike.

aircooled
aircooled MegaDork
6/29/16 12:53 p.m.

If you look at it like he is creating his initial momentum (energy) with the jump then trades some of his energy in his body to the bike (overall energy stays the same) to allow it to get ahead of his body, it think it makes it seem a bit more reasonable. The center of the mass of him and the bike will still move the same distance either way he just rearranged where the bike was in relation to it.

Knurled
Knurled MegaDork
6/30/16 7:36 p.m.
Duke wrote:
alfadriver wrote: In reply to Duke: He's just doing a standing long jump. No magic physics.

No, I get it; I see how it works. It just seems like there is a lot of momentum-killing back-and-forth with the bike.

The neat thing is, you can use the bike as a lever and jump higher than you ordinarily could. I remember years back there was a bunnyhop (vertical jump) competition and most people were over six feet, with the winner at something like six foot seven.

The highest I could ever bunnyhop was three feet. I could go higher with clipless pedals, which is cheating, but cheaters never perspire.

slefain
slefain UberDork
7/1/16 10:39 a.m.

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