Let F be the fluid force on a side of a semicircular plate of radius r meters, submerged vertically in water so that its diameter is level with the water’s surface (Figure 9).

(a) Show that the width of the plate at depth y is 2 r² − y².
(b) Calculate F as a function of r using Eq. (2).

Transcribed Image Text:

y 2√√² - y2 r X