The Mass of Pluto Is $1.31 \times 10 ^ { 22 } \mathrm {~kg}$

Multiple Choice

The mass of Pluto is $1.31 \times 10 ^ { 22 } \mathrm {~kg}$ and its radius is $1.15 \times 10 ^ { 6 } \mathrm {~m}$
What is the acceleration of a freely-falling object at the surface of Pluto if it has no atmosphere? $\left( G = 6.67 \times 10 ^ { - 11 } \mathrm {~N} \cdot \mathrm { m } ^ { 2 } / \mathrm { kg } ^ { 2 } \right)$

A) $0.661 \mathrm {~m} / \mathrm { s } ^ { 2 }$
B) $0.140 \mathrm {~m} / \mathrm { s } ^ { 2 }$
C) $9.81 \mathrm {~m} / \mathrm { s } ^ { 2 }$
D) $1.62 \mathrm {~m} / \mathrm { s } ^ { 2 }$
E) $3.72 \mathrm {~m} / \mathrm { s } ^ { 2 }$