Bricks Under Water

Imagine holding two identical bricks under water. Brick A is just beneath the surface of the water, while brick B is at a greater depth. The force needed to hold brick B in place is:

A) larger than

B) the same as

C) smaller than

the force required to hold brick A in place.

Solution

Adapted from Eric Mazur, Peer Instruction, A User's Manual, Prentice-Hall, 1997

Last updated January 07, 2005
by Erik Jensen