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23 Nov 2019
(b) Write Newton's second law for the system in one dimension,using B for buoyancy, w for the weight of the survivor, and wr forthe weight of the raft. (Use any variable or symbol stated above asnecessary.)
Fy =
(c) Calculate the numeric value for the buoyancy, B. (Seawater hasdensity 1025 kg/m3.)
1040 N
(d) Using the value of B and the weight w of the survivor,calculate the weight wr of the Styrofoam.
457 N
(e) What is the density of the Styrofoam?
146 kg/m3
(f) What is the maximum buoyant force, corresponding to the raftbeing submerged up to its top surface?
3210 N
(g) What total mass of survivors can the raft support?
Got everything but part g.
(b) Write Newton's second law for the system in one dimension,using B for buoyancy, w for the weight of the survivor, and wr forthe weight of the raft. (Use any variable or symbol stated above asnecessary.)
Fy =
(c) Calculate the numeric value for the buoyancy, B. (Seawater hasdensity 1025 kg/m3.)
1040 N
(d) Using the value of B and the weight w of the survivor,calculate the weight wr of the Styrofoam.
457 N
(e) What is the density of the Styrofoam?
146 kg/m3
(f) What is the maximum buoyant force, corresponding to the raftbeing submerged up to its top surface?
3210 N
(g) What total mass of survivors can the raft support?
Got everything but part g.
