Significant Figures · PhysicsBowl 2010 #3

Physics · mechanics

Problem

The following three measurements of length are given:

L_1 = 22.05\text{m}

L_2 = 6.1123\text{m}

, and

L_3 = 89.6\text{m}

. What is the sum of these measurements using rules of proper significant digits? (A) 120 m (B) 118 m (C) 117.8 m (D) 117.76 m (E) 117.7623 m