San José State University Gravitational Acceleration and Buoyant Force HW

San Jose State University

Question Description

A.Block submerged in water

B.Block in the air

C.If the reading on the scale with the submerged block is N1 and the reading on the scale with the block in the air is N2, write an equation for B in terms of N1 and N2.

D.The equation in question C suggests a procedure for determining the magnitude of the buoyant force on a completely submerged object.By measuring the scale reading (the normal force) on the block when it is in the water and when it is in the air, you can simply determine the magnitude of the buoyant force.Briefly describe the procedure you will follow.

You may wish to check your procedure with your instructor before you proceed.

Try out your equation with a block of aluminum and determine the buoyant force.

Check your answer for the buoyant force by showing the force readings.In the next section you can either determine the buoyant force by looking at the reading for the force values or by using your equation.

Final Answer


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Questions and answers
What is the force acting on each block?
A. Block submerged in water experiences an upward force due to buoyancy of the fluid and a
downward force due to gravitational acceleration felt as the weight of the block. The forces are
equal to balance the block at an equilibrium position.

Buoyant force=Fb
Water level
Weight =mg

B. Block in the air experiences a downward force due to its mass affected by gravitational...

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