SOLUTION: If John is pushing the classroom wall.Does he work?why?

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Question 825912: If John is pushing the classroom wall.Does he work?why?
Answer by Seutip(231) About Me  (Show Source):
You can put this solution on YOUR website!
http://van.physics.illinois.edu/qa/listing.php?id=20305

It might answer your question, better check it up.
HOPE THAT HELPS!