A 100 N Picture Hangs from a Nail in the Wall

Multiple Choice

A 100 N picture hangs from a nail in the wall. The diameter of the nail is 3.00 mm. The shear stress on the nail is

A) 1.98 × 10⁷ N/m².
B) 1.86 × 10⁷ N/m².
C) 1.62 × 10⁷ N/m².
D) 1.41 × 10⁷ N/m².
E) 1.34 × 10⁷ N/m².