Question

The mass of the moon is about 1/81 the mass of the earth and its radius is 1/4

that of the earth. The
acceleration due to gravity at the earth's surface is 9.8 m/s2. What is the acceleration due to gravity on the moon's surface?
9.8 m/s2
2.8 m/s2
1.9 m/s2
3.0 m/s2

Answer 1

The correct answer is:

1.9 m/s2

Step-by-step explanation:

(1/81)(4)^2(9.8m/s2)

= 1.9358 m/s2