Uniform circular motion: Future space stations will create an artificial gravity by rotating. Consider a cylindrical space station 390 m diameter rotating about its central axis. Astronauts walk on the inside surface of the space station. What rotation period will provide "normal" gravity?
A) 28 s
B) 40 s
C) 6.3 s
D) 4.4 s

Question

Quizplus · Accepted Answer

The centripetal acceleration needed to simulate Earth's gravity (9.8 m/s²) is provided by the formula a = (4π²r)/T², where r is the radius (195 m) and T is the period. Solving for T gives approximately 28 seconds.

Uniform Circular Motion: Future Space Stations Will Create an Artificial