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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