Question

Three jars each have volume V and height h, but they have different shapes as shown in (Figure 1) . Water is to be added to each jar and the pressure is to be measured right at the bottom of each jar.

Figure 1

Part A

Rank the jars in order of decreasing pressure if the volume of water is V.

Rank from largest to smallest. To rank items as equivalent, overlap them.

P_a, P_{c ,} P_b

or correct ranking cannot be determined.

Part B

Rank the jars in order of decreasing pressure if the volume of water is V/2.

Rank from largest to smallest. To rank items as equivalent, overlap them.

P_{b ,} P_{a ,} P_c

or correct ranking cannot be determined

Answer 1

part A)

Pa = Pb = Pc

partB

PC > Pb > pa