An astronaut inside a spacecraft is in a state of weightlessness. This implies that?
- A. The mass of the astronaut is reduced to zero
- B. Gravity inside the spacecraft ceases to act
- C. The astronaut is outside the influence of the earth's gravitational force
- D. The astronaut and the spacecraft are both in a free-failing state
Explanation
Weightlessness means the astronaut and spacecraft are falling together under gravity, so no supporting force is felt. Earth’s gravity still acts, and the astronaut’s mass does not become zero.
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