Asked by Rutgers
A raft is made of 14 logs lashed together. Each is 29.5 cm in diameter and has a length of 6.50 m. How many people (whole number) can the raft hold before they start getting their feet wet, assuming the average person has a mass of 75.0 kg? Do not neglect the weight of the logs. Assume the density of wood is 600 kg/m³
Answers
Answered by
Henry
Vr = 14 * pi*r^2 * h = 3.14*(0.295/2)^2 * 6.5 = 6.22 m^3 = Volume of the raft.
Vr*Dr = 6.22m^3 * 600kg/m^3 = 3732 kg =
Mass of the raft.
Vw*Dw = 6.22m^3 * 1000kg/m^3 = 6220 kg =
Mass of the water displaced.
6220 - 3732 = 2488 kg can be added to the raft.
2488kg * 1person/75kg = 33 People.
Vr*Dr = 6.22m^3 * 600kg/m^3 = 3732 kg =
Mass of the raft.
Vw*Dw = 6.22m^3 * 1000kg/m^3 = 6220 kg =
Mass of the water displaced.
6220 - 3732 = 2488 kg can be added to the raft.
2488kg * 1person/75kg = 33 People.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.