Inflatable Boat Capacity 420L - Load Capacity Calculation

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Homework Help Overview

The discussion revolves around calculating the load capacity of an inflatable boat with a specified volume and water density. The original poster presents a scenario where the boat's volume is partially submerged, and they seek to determine how much weight can be added before it reaches the water surface.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the buoyant force based on the volume of water displaced and questions the correct application of the relevant equations. Some participants suggest using unitary methods and check the calculations presented.

Discussion Status

The discussion is ongoing, with participants providing feedback on the calculations and exploring different methods to approach the problem. There is no explicit consensus yet, but some guidance has been offered regarding the calculations.

Contextual Notes

Participants note the conversion between liters and cubic meters, which may impact the calculations. The original poster's assumptions about the boat's buoyancy and the density of water are also under consideration.

chawki
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Homework Statement


Inflatable boat with a capacity of 420 liters, floating in empty, so that 91% of the volume is above the water surface. The density of water is 1020 kg/m3

Homework Equations


How big load in kilograms can be loaded, top of the sink to be just the water surface level?

The Attempt at a Solution


i guess we need to find the buoyant force Fb which is the weight of the water displaced Wwd

Wwd=1020*0.42*9.81 ?
and that's gives us 4202.604 N

or maybe:
Wwd=1020*0.0378*9.81 ??
 
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hello
 
Remember 1000litres = 1m^3

And then use unitary mathod...:smile:

Suk-Sci
 
... ... ...
 
anyone can check my work?
 
hello
 

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