6. An astronaut, spaced out as usual, sits in her room at position "F" onthe outer rim of a wheel-shaped station as shown. Gravitational forcesare negligible. The station rotates about its axis 100 times each houras shown. She weighed 900 N on earth. Her mass has not changed,but when she stands on a spring scale at "F" it correctly reads 1000 N.Calculate the radius of the station. Answers in meters.

【按個讚】評論
F=ma1000=90a