Assume That the Average Mass of Each of the Approximately

Multiple Choice

Assume that the average mass of each of the approximately 1 billion people in China is 55 kg. Assume that they all gather in one place and climb to the top of 2-m-high ladders. The center of mass of the Earth (mE = 5.90 1024 kg) is then displaced

A) 0 m.
B) 1.84 × 10−23 m.
C) 1.84 × 10−14 m.
D) 1.80 × 10−13 m.
E) 2 m.