A planet has twice the mass of Earth and twice the radius of Earth. The free-fall...

Question

Question

A planet has twice the mass of Earth and twice the radius of Earth. The free-fall acceleration on this planet is equal to what?

science physics

Answer 1

Answer #1

g is proportional to mass and inversely proportional to radius of the earth

g would be g_earth/g_planet = m/r² * (2r)²/2m
So g_planet = 1/2 * g_earth = 0.5 * 9.8 = 4.9 m/s²(ans)

Answer 2

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