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# New Planet Twice Size of Earth

APPH12-G1DG4M

After many years of hard work, you have fulfilled your life long dream of discovering a new planet in our solar system. You determine the planet has a mass twice that of Earth's with a radius $1.5$ times that of Earth.

What is the strength of the gravitational field at the surface of this planet?

A

$g = 0.89\ \mathrm{m/s^2}$

B

$g = 11.02\ \mathrm{m/s^2}$

C

$g = 8.72\ \mathrm{m/s^2}$

D

$g = 13.08\ \mathrm{m/s^2}$