A oneinch depth of sand is poured onto the cap on each arm. After the caps have moved (if necessary) to
reestablish equilibrium, is the right cap higher, lower,
or the same height as the left cap?
Pressure at the surface
The pressure at the base of each arm depends on the pressure at the surface of each arm, not the
weight at the surface of each arm.
Evaluate the weight of the sand
Compare the weight of the sand on the two caps. Which of the following is true?
Evaluate the pressure applied by the sand
Now compare the pressure exerted by the sand on the two caps. Which of the following is true?