Apologies for resurrecting an old topic but I was just directed here so am reading it (eep !) for the first time. I love these ideas but I have a question about number15:
“15.A 1 kg mass(or similar , tin of beans etcis probably better) is connected to some thick string and the rope wrapped around a wooden cylinder (rolling pin, or even a wine bottle will do as substitute).
When the rod is lifted what will happen?
(This can be done as a tie break, how many turns are needed for the tin to be lifted)
( the kilogram mass is held by the rope which doesn’t slip with a few turns)”
… I just can’t figure out what this is supposed to be doing. .. again sorry for resurrecting this for a silly question!