# Find Max mass(not weight) supported by an air matress in fresh water.

• dspivak01
In summary, an air mattress with dimensions of 2.4 m x 0.65 m x 12 cm and a mass of 0.21 kg can support a maximum mass in freshwater equal to its volume of water. To find the buoyant force, the volume of the mattress must be determined and compared to the weight of the mattress.
dspivak01
1. An air mattress is 2.4 m long, 0.65 m wide, and 12 cm deep.

2. If the air mattress itself has a mass of 0.21 kg, what is the maximum mass it can support in freshwater?

3. I have absolutely no clue in which direction to go in once i found the buoyant force, which I am not sure is right either.

Last edited:
dspivak01 said:
1. An air mattress is 2.4 m long, 0.65 m wide, and 12 cm deep.

2. If the air mattress itself has a mass of 0.21 kg, what is the maximum mass it can support in freshwater?

3. I have absolutely no clue in which direction to go in once i found the buoyant force, which I am not sure is right either.

What is the volume of the mattress? What would an equivalent volume of water weigh?

Given that number, and the weight of the mattress, what can you say about what bouyant force the mattress can generate when fully submerged in water?

## 1. What is the purpose of finding the maximum mass supported by an air mattress in fresh water?

The purpose of this experiment is to determine the weight limit of an air mattress when used in fresh water. This information can be useful for understanding the limits of the mattress and ensuring its safe use.

## 2. How does the mass of the air mattress affect its buoyancy in fresh water?

The mass of the air mattress directly affects its buoyancy in fresh water. The more mass the mattress has, the more it will sink in water. This experiment will help determine the maximum mass that can be supported by the mattress before it sinks.

## 3. What factors can affect the maximum mass supported by an air mattress in fresh water?

Some factors that can affect the maximum mass supported by an air mattress in fresh water include the size and shape of the mattress, the quality of the air pump used to inflate it, and the temperature and salinity of the water.

## 4. How is the maximum mass supported by an air mattress in fresh water determined?

The maximum mass supported by an air mattress in fresh water is determined by gradually adding weight to the mattress until it reaches its limit and starts to sink. The weight at which this occurs is recorded as the maximum mass supported by the mattress in fresh water.

## 5. Can the maximum mass supported by an air mattress in fresh water change over time?

Yes, the maximum mass supported by an air mattress in fresh water can change over time due to various factors such as wear and tear, temperature and salinity changes in the water, and the quality of the air pump used to inflate it. It is important to periodically test the mattress to ensure its maximum weight limit has not changed significantly.

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