Question

The International Space Station is currently under construction. Eventually, simulated earth gravity may become a reality on the space station. What would the gravitational field through the central axis be like under these conditions?

• A. Zero
• B. $0.25g$
• C. $0.5g$
• D. $0.75g$
• E. $1g$

Answer 1

The correct option is A Zero

Simulated earth gravity can be realized by rotating the space station about a central axis. This rotation creates centrifugal force on the people inside the space station away from the central axis. Thus, $g={\omega }^{2}R$ at the central axis $R=0$. So, gravitational field is zero.