A swimmer floats because the forces underneath are larger. This is due to:
AMore warmth
BExtra salt
CGreater depth
DHigher speed
Answer & Solution
Correct answer: C. Greater depth
1. Pressure in a fluid varies with how deep you go.
2. The forces on a submerged body are larger underneath.
3. That is due to greater depth.
4. The result is a net upward or buoyant force balanced by the swimmer's weight.
_Source: OpenStax College Physics for AP Courses 2e (CC BY 4.0), Ch 11 'Fluid Statics', sections 11.1-11.9_
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