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26 Dec 2021
Given information
The weight of the athlete on a dry land is .
The apparent weight of the athlete from a scale is .
The residual volume is .
Step-by-step explanation
Step 1.
When an object is fully or partially in a fluid it exerts an upward thrust on the object which opposes the weight of the object. This force is called buoyant force.
The formula to calculate the buoyant force on the athlete is
Here, is the buoyant force, is the density of water, is the volume and is the acceleration due to gravity.
The actual weight of the athlete is
Here, is the actual weight and is the actual mass.
The apparent weight of the athlete due to the scale is
Here, is the actual weight and is the apparent mass.
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