An astronaut on a strange planet finds that the acceleration due to gravity is twice that on the surface of the Earth. Which of the following could explain this?
- ABoth the mass and radius of the planet are half that of Earth
- BRadius of the planet is half that of Earth,but the mass is the same as that of Earth
- CBoth the mass and radius of the planet are twice that of Earth
- DMass of the planet is half that of Earth,but radius is the same as that of Earth
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