Physics · Gravitation
Astronauts cannot stand upright in a state of free fall in orbit around the Earth primarily because of the absence of:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Atmospheric pressure
- 2An effective gravitational reaction force (weightlessness)✓
- 3Friction
- 4Air resistance
Correct answer
An effective gravitational reaction force (weightlessness)
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