Answer:
g/2
Explanation:
Acceleration due to gravity at the surface of a planet is:
g = GM / r²
where G is the universal gravitational constant,
M is the mass of the planet,
r is the radius of the planet.
If a planet has half the mass and the same radius, then:
a = G (M/2) / r²
a = g/2
The acceleration due to gravity on the planet is half the acceleration on Earth.
