A Steel Cable Is Tightly Tied (Horizontally) to Two Trees

Multiple Choice

A steel cable is tightly tied (horizontally) to two trees that are 8 meters apart. A 40-kg child hangs from the center of the cable-causing the center of the cable to be 1 cm below the original location (before the child grabbed the cable) . The tension in the cable is

A) 78,000 N.
B) 400 N.
C) 1200 N.
D) 12,000 N.