Posted by poppy on Sunday, November 6, 2011 at 8:22am.
your weight is 600 newtons and you have just finished building a raft which weighs 1000 newtons. what is the smallest upthrust force needed so that it will float with just you on it ?
(please answer really quick )

science  drwls, Sunday, November 6, 2011 at 8:58am
1600 N
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