33. The problem intends for the children to be completely above water. The total downward pull of gravity on the system is ()wood3 356 NNgVρ+whereNis the (minimum) number of logs needed to keep them afloat and Vis the volume of each log: V= π(0.15 m)2(1.80 m) = 0.13 m3. The buoyant force is Fb= watergVsubmergedwhere we require
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.