A disk-shaped space station has been built by Professor Trout. It is in outer space at this moment. It is 175 m in diameter and spins uniformly about an axis perpendicular to the plane of the disk through its center. How many revolutions per minute must this disk make so that the centripetal acceleration experienced by tenants in the space station is exactly g/2? a) 2.26 rev/min b) 0.87 rev/min c) 7.12 rev/min d) 3.94 rev/min

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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.