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A barge loaded with a stack of steel plates is approaching a low
bridge.
Would their clearance be helped or hindered by tossing a plate or two
overboard?
(It's a river/canal, not a closed swimming pool/lake.)
explain your reasoning.
Warning: This message may pose a quandary for fans of Mazur in particular
and PER in general but who do not like multiple choice questions. You may
wish to stop at this point.