# A raft

I want to build a raft, and I have beams with a square section with side a=20cm and length l=2m, wood density 670 kg/m

^{3}. I will connect 10 beams - what is the volume of the raft and its weight? How deep will a raft sink in water (water density 1000kg/m^{3})? The weight of one person is 50kg. How many people can it carry?## Correct answer:

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