An astronaut in orbit experiences apparent weightlessness because:
A
There is no air in space
B
The astronaut and spacecraft are in continuous free fall
C
The astronaut has no mass
D
Gravity is zero in space
Correct Answer: Option B — The astronaut and spacecraft are in continuous free fall
Explanation:
Astronauts in orbit feel weightless because both they and their spacecraft are continuously falling freely under gravity while moving forwar...
Astronauts in orbit feel weightless because both they and their spacecraft are continuously falling freely under gravity while moving forward, resulting in no normal contact force between the astronaut and the spacecraft.