BigNose wrote:More:PSSpoiler:As stated, when the rope is spilled out by 40m, you negate any spin momentum by spinning on the spot, moving the rope end from hand to hand.
The momentum at the other end is the spin in the block and the directional momentum from where you pushed it.
Consider now that the energy on you is a zero value, (we can now ignore the spin momentum on me) the rope is taut, but the block contains both directional momentum and spin momentum, therefore, there is more energy at the gold end that at your end.
Thus, the block will continue to move in the same direction, albeit at a slower rate and start to unwind that spin momentum, which it has been doing all the time of its travel, ergo, the gold block will now start to pull you and you and the block are traveling in the SAME direction.
Who cares if the block continues to spin and coil the rope, YOU have directional momentum and will achieve the edge eventually.
Probably very dizzy from all that spinning.Spoiler:gmalivuk wrote:
I misunderstood what you meant by negating spin, but as it turns out spin isn't relevant to why it can't work anyway.
If the gold block does something to pull in the rope,
or if you do something to pull in the rope,a tension is applied to the rope and it pulls on both you and the block equally. There's no way to get around that basic Newtonian fact of the matter.
tl;dr If A + B = C + D, but A is negated, then B <> C + D, ergo you are pulled.
How do you stop spinning without imparting angular momentum to something else?