No matter how long the slinky is, the bottom of the slinky will stay still (hover) until the top reaches it. Even if the slinky is over 1000 feet long.
This kind of shit is why I love physics.
Science!
Why isn’t physics this fun when I have to do it
That makes sense if I think about it for a long time, but I get the vague feeling that I’m “fanwanking” physics.
I love Veritasium.