After recently seeing a video of a man doing a loop on a swing, it occurred to me that swinging in that manner is pretty counterintuitive to the things I learned in physics class.
Basically, how do we make it go higher without an external force to push us, and without pushing ourselves off of anything? I’m stuck thinking that you can’t lift a chair that you’re sitting on, so a swing should work the same.
My first thought was it must be something to do with how you generally swing your legs, but in the video I saw, the guy on the swing didnt use his legs in that way at all as he was standing on the seat of the swing.
So, in simple terms what actually is happening there, and where does that momentum come from?
In: 9
To ass to it,
When you swing to go forward, you are tilting your upper body back as well as pulling on the rope, when swining back, you push on the ropes creating a Mini swing effect(ex: the rope is 3 meters long but with you arms, you a pulling at 0.75 meters from the seat.) Its easier to create a self swinging momentum shift with 1/4th of the rope than with the whole rope.
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