principles/concepts
any equipment/
how to make it move faster
2006-06-21 19:10:11 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Principle of all boats is that of buoyancy. Objects will float (will have buoyancy) when the volume of the liquid that they displace is equal in mass to the mass of the object. In a way, you can imagine a 1-to-1 tradeoff. When you place a boat of X volume in water, it displaces (pushes aside) X volume of water. That X volume of water, if you can take it out and weigh it, will equal the weight of your boat. So you can do some calculations for "displacement" (the volume that your boat takes up in water) and then calculate the mass of the water it displaces. If the mass of the water you displace is greater than the mass of your ship, it will float.
No matter what, make sure the boat is waterproof. In olden days wooden boats were sealed with tar and wax. Any waterproof substance (usually an oil-based resin) should help seal the boat.
Your boat moves faster if it displaces less water. But wait..there's clearly another trade-off here: if you have a lot of displacement, you float better, but that also means your boat takes upa lot of volume, and that will increase water resistance and make your boat slower. So your task here is to find a volume of displacement that allows your boat to float while it doesn't take up so much volume that it will slow the boat down. One solution is to make the hull (underside that is beneath water) more hydrodynamic (more flowy). You can experiment with different designs (if the materials permit) such as a standard hull or a catamaran. The principles of hyrdodynamics are similar to aerodynamics: sharper contours are less resistant than square shapes. Think of an arrow going through air versus a square brick.
2006-06-21 19:26:54 · answer #1 · answered by bloggerdude2005 5 · 1⤊ 1⤋
jeez...I had it easy for my boat project. None of your materials will really displace enough water to hold a 200lb person. Wood floats but not enough to carry a person across an entire pool without sinking and not getting the person wet. Are you sure that those are the only materials that you can use?
2016-03-27 00:41:25 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1
2017-02-19 16:55:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋
one fact: the narrower it is, the faster it is. The lose of displacement must be made up for by increase in length.
bow sharp entry, stern sharp tapper.
2006-06-21 19:18:21 · answer #4 · answered by bajaexplorer 2 · 0⤊ 0⤋
518 Boat Plans - http://BoatPlans.NaturallyGo.com/?Tjz
2016-04-02 13:43:45 · answer #5 · answered by Angelina 3 · 0⤊ 0⤋