What is the volume of the wood immersed in the water-filled flask?

[Callie]

A piece of wood with a density of 730 kg/m3 is tied with a string to the bottom of a water-filled flask. The wood is completely immersed, and the tension in the string is 1.09 N. Find the volume of the wood.

 

[tommyxu3]

My opinion:
Observe that the forces acting on the wood contain the gravity, the buoyancy and the tension. Try to find out their relation.

 

[Chestermiller]

Callie,

Have you drawn a free body diagram on the piece of wood showing the forces acting on it? Can you name these forces? Are you able to write a force balance equation on the piece of wood (based on the free body diagram)?

Chet