Question

5.   The buoyant force is a consequence of the fact that pressure varies with depth. To understand this, do the following, for a vertical cylindrical object that is submerged in a liquid:
a.   If the liquid pressure at the top of the cylindrical object is P, write an expression for the liquid pressure at the bottom of the cylinder of length L.
b.   Write expressions for the magnitude of the force that the liquid exerts at the top of the cylinder and at the bottom of the cylinder.
c.   Write an expression for the net force exerted by the liquid on the cylinder.
d.   Compare the expression in part (c) with the expression for the buoyant force given by Archimedes’ principle.
e.   What can you conclude from the results from the previous parts of this question?

you must explain why

Answer 1

The compare between buoyant force and total force by liquid at cylinder