Buoyant Force

Practice Questions

AP Physics 2 › Buoyant Force

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1

Seawater density:

A baseball has a mass of and a circumference of . Determine what percentage of a baseball will be submerged when it is floating in seawater after a home run?

2

What is the net force on a ball of mass and volume of when it is submerged under water?

3

A balloon of mass is inflated to a volume of with pure . Determine the buoyant force it will experience when submerged in water.

4

A semi-hollow, spherical ball with an empty volume of is submerged in water and has an initial mass of . The ball develops a leak and water begins entering the ball at a rate of . How long does it take before the buoyant force on the ball is equal to the gravitational force?

5

A block of mass is sinking in water at a constant velocity. There is a constant drag force of acting on the block. What is the volume of the block?

6

A block with a volume of sinks to the bottom of a water tank. What is the buoyant force on the block?

7

Determine the net force on a copper ball of radius submerged into water.

8

Hanging from a scale is a sphere that is totally submerged in a pool of water. If the reading on the scale is , calculate the radius of the sphere.

9

Which of the following statements best describes the buoyant force on an object submerged in water?

10

A scuba diver with a total mass is dressed so his density and is holding a spherical ball with a volume while submerged in water. What is the density of the ball if the upward acceleration of the ball and diver is ?

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