When the person in a cartoon steps inside a loop of a rope on the ground and onto a trap, and the rope grabs the ankle so quickly and lift up high to raise the person upside-down and hanging? How does this work in real life?
In: Physics
The knot in the rope is tied such that it allows the rope to pass through it without any issue. So when the rope is tightened by the trap mechanism it will first just pull the rope through the knot making the noose tighter. When the noose tightens over the foot the same pulling of the rope will be used to lift the person into the air. The more you pull the tighter it will be so in order to release the noose from the foot you need to release tension on the rope. But this can be quite hard when you are dangling in the air. This type of trap is quite hard to make to work so it is very rarely used in practice. But it looks great in cartoons.
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