Investigating A Less Water Resistance In Boat

744 Words 3 Pages
HYPOTHESIS
The main hypothesis being investigated is that a more buoyant boat will have a higher velocity. It will encounter less water resistance as less of the hull is below the water. The secondary hypothesis is that the smaller the angle x, a surface is to the water, it will be able to skim and plane across the surface better, thus achieving greater speeds. The models of the boats will be further explained in the Methodology: Boat Design section.
Experiment 1: Model A will have a velocity faster than that of Model B, as Model A will have the same mass spread over a larger area than Model B. This lets it displace the water with less depth, letting it float higher in the water. This means that less of the boat will be below the water, resulting
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The larger draft both causes an increase in water resistance, due to the stern having a larger surface area, and a decrease, due to this larger draft leading to a larger buoyant force, causing the boat to float higher. Deducing whether the decrease in resistance is greater than the increase can only be accurately done through experimentation.
HYPOTHESIS
The main hypothesis being investigated is that a more buoyant boat will have a higher velocity. It will encounter less water resistance as less of the hull is below the water. The secondary hypothesis is that the smaller the angle x, a surface is to the water, it will be able to skim and plane across the surface better, thus achieving greater speeds. The models of the boats will be further explained in the Methodology: Boat Design section.
Experiment 1: Model A will have a velocity faster than that of Model B, as Model A will have the same mass spread over a larger area than Model B. This lets it displace the water with less depth, letting it float higher in the water. This means that less of the boat will be below the water, resulting in less water resistance than Model B, and so allowing a higher
…show more content…
Model C has a larger hull and volume than Model A, allowing it to float higher, thus encountering less water resistance.
Experiment 3: the prediction is that Model D will have a lower velocity than Model D This is because angle a is larger in Model D, this allows the surface area of the draft to decrease, causing the force of buoyancy to decrease and increasing water resistance. Furthermore but also the edge of the bow being more parallel to the water in Model A than in Model B, will make it more streamlined in the water.
Experiment 4: It is predicted that Model E will have a higher velocity than Model A as angle B in Model E is more parallel to the surface of the water, allowing it to skim, as in glide across the surface of the water. The larger draft both causes an increase in water resistance, due to the stern having a larger surface area, and a decrease, due to this larger draft leading to a larger buoyant force, causing the boat to float higher. Deducing whether the decrease in resistance is greater than the increase can only be accurately done through

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