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

Multiple Choice

A steel cable is tightly tied (horizontally) to two trees that are 10 meters apart. A child hangs from the center of the cable, causing the center of the cable to be 2 cm below the original location (before the child grabbed the cable) . The tension in the cable is 70,000 N. The mass of the child is

A) 41 kg.
B) 66 kg.
C) 57 kg.
D) 48 kg.