Competency #4
Answer and Explanation
The correct answer is B.
Buoyant force is an upward force that a fluid exerts on an immersed object. The magnitude of the buoyant force depends on the volume of the object that is submerged.
When comparing the child to the small toy boat, we need to make a reasonable assumption- that the volume of the child submerged is much greater than the volume of the boat that is submerged. With this true, the child must experience a greater buoyant force.
While you are not required to draw a force diagram for this question, it may have been helpful.
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