But surely the height of the boat wont matter, as if for example to bridge of sighs needs 2.5m to 6m of tidal water no matter what the height of the boat it has to be 6m of tidal water or less. If that's right then clearance would be a statement making sure that the tide is less than 6m to say yes and if it isn't then no?(Original post by ciaranh98)
Now, I have spoken to my teachers, and we have come to the conclusion that in the exam, we think they will provide the height of the boat, which will mean that we can calculate the clearance which we think is how much room you have before you hit the bottom of the bridge. We do not have any other ideas of what this could be until Monday.
From GCSE to A level, it's all changing