It is strongly recommended that you try this one
Can you hang a painting from three pegs such that the removal of any single peg causes the painting to fall?
Similar to a painting hanging on two nails if the third peg were at the bottom side corner on any side and string were just rolled over once.
The string if firmly fixed to the painting on one side & fixed to the bottom nail on the other by rolling it over.
I do not know how to draw. In case of two nail problem if either of the nail were to be removed the bottom nail will loosen & fall hence painting will fall. Incase bottom nail is removed the string will open up and fall.
See link below for solution of two nail problem
Edited on June 3, 2006, 12:58 am
Edited on June 3, 2006, 12:59 am
Edited on June 3, 2006, 1:01 am
Posted by Salil
on 2006-06-03 00:50:24