A Cylinder,semicircular in Cross-Section,is 10 M Long and 5

Multiple Choice

A cylinder,semicircular in cross-section,is 10 m long and 5.0 m in radius.It is completely submerged,with its flat bottom side horizontal and 8.0 m below the water surface,as shown in the figure.What is the magnitude of the net force on the curved upper surface of the half-cylinder? Neglect atmospheric pressure.

A) 2.0 × 10⁶ N
B) 2.5 × 10⁶ N
C) 3.0 × 10⁶ N
D) 3.5 × 10⁶ N
E) 4.0 × 10⁶ N