When the Boat Comes In
The Problem :
We
all know there’s something unexpected about what happens when you pull
something towards you that you can’t quite see ... well, this is especially
true for boats :
Imagine
you are on a jetty, and you are pulling in a boat that is floating on the water
some way away. The rope comes up over the edge of the jetty, and lies along the
jetty as you pull it in.
As
you pull in 10 metres of rope, the boat clearly moves in too, but does it move exactly
10 metres, more than 10 metres or less than 10 metres ?
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