Q:

What is Pluto's surface gravity?

A:

Quick Answer

The surface gravity of Pluto is measured according to its gravitational acceleration, calculated as approximately 0.58 meters per second squared. By contrast, the acceleration of Earth's surface gravity is measured at roughly 9.80 meters per second squared.

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Full Answer

The ratio of these two surface gravities indicates that Earth's surface gravity is 17 times more powerful than Pluto's. A 17-pound object on Earth weighs only 1 pound on Pluto. The surface gravity of a planet is a function of its mass and volume. Pluto's mass, 1.31 x 10^22 kilograms, is only 0.22 percent of Earth's mass, which is 5.97 x 10^24 kilograms. Furthermore, Pluto's volume at 7.19 x 10^9 kilometers cubed is 0.66 percent of Earth's 1.083 x 10^12 kilometers cubed.

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