Posted by Hannah on Thursday, June 21, 2012 at 8:36pm.
What is the smallest number of whole logs (ñ = 725 kg/m3, radius = 0.0800 m, length = 3.60 m) that can be used to build a raft that will carry four people, each of whom has a mass of 60.0 kg?
I do not know how to start this.

Physics(Please help)  Anonymous, Friday, November 30, 2012 at 11:28am
20 logs
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