Thus, having a total useable capacity of something like, in my hypothetical example, 93.75% of bed capacity would be a prudent use of resources. It is highly unlikely that there would ever be a sailing on which every bed would be filled, or even 90% of the beds, because not everyone travels in groups of 4. If the ship had a lifeboat seat for each bed, there would be many more lifeboats, causing more weight/expense/maintenance. No one will get on the ship without a reservation, and no one can make a reservation that will cause there to be more passengers than lifeboat spaces, so the total number of beds isn’t relevant. The total number of passengers on the ship cannot exceed the number of lifeboat spaces. Now that frees up a room in the first section that could take 1, 2, or 3 people, but not 4. However, there may be a different section that has an available 4-person room, so the 3 people and 1 more person can take that room. However, if an 11th room wants to add a person, DCL will not permit it, because the capacity in that section has been reached. Then 10 of the 3-person rooms can add another person.
If half of the rooms have 3 people and half have 4 people, that’s 140 people. (Some rooms actually hold 3 or 5 people, but that’s not important for this example.) The maximum number of passengers that DCL will book in those 40 rooms is 150. Each room has beds for 4 passengers, but some rooms will have only 1 or 2 or 3 people who reserve that room. Suppose each lifeboat holds 150 passengers (plus crew, but assume the crew number per boat is fixed) and suppose that each muster station has 40 rooms. I don’t know the actual numbers, but the exact numbers aren’t important to understand the principle. Welcome to Religious Forums, a friendly forum to discuss all religions in a friendly surrounding. Someone please correct me if I am not thinking about this correctly, my analytical mind needs to know! If this is indeed correct, then the argument about there not being enough room at a muster station to be able to fill all of the beds in a room would not be correct, or am I missing something? I know that cruise ships probably never sail with every bed full, but surely they have to be built to provide enough lifeboat space if they ever did, right? If so, then there should always be room at every muster station for every bed in that station to be sold/filled. This has always puzzled me because that must mean that the ship has more total beds than spaces in life boats/rafts, right? Surely regulations would not allow cruise ships to be built with fewer spaces in lifeboats than beds on the ship? I did a small amount of research and found several websites that said that cruise ships actually are required to have a total lifeboat capacity of 125% total ship capacity (and some have more!), due to lifeboat maintenance and/or malfunction. I need some explanation of what I am being asked in the problem before I apply the formulas.Over the years on this board I have seen regular references to a “muster station being full”, mostly in reference to someone not being able to add a person to a room, even if the room has a bed for the additional person. Would it be the same idea if you walked on a boat that was in space, so its about no friction?Ĭenter of mass formula: x = m1x1 + m2x2 / m1m2 The thing i want to know before applying any formulas is what is happening in the problem conceptually. Also what is the underlying assumption that is made for a boat in water? Ths problem confuses me. Specifically what I don't understand is what is actually happening in the problem and also why. The lifeboat does not shift forward or backward as a result of the persons motion.
The lifeboat shifts in the same direction as the persons motion with constant velocity.The lifeboat shifts by L/4 in the opposite direction of the persons motion.The lifeboat shifts by the same distance traversed, but in the opposite direction of his motion.Which of the following statements best characterizes the motion of the lifeboat? "
The person then walks a distance of L to the other side of the lifeboat. A person with mass m is sitting on one end of a lifeboat of uniform density.
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