It is estimated that person rotating horizontally can withstand an acceleration of around 15 times that of

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Question:

It is estimated that person rotating horizontally can withstand an acceleration of around 15 times that of gravity (“15g”). An astronaut in training sits in a test device that undergoes circular motion. The astronaut sits a distance of 12 m from the axis of rotation. The (tangential) velocity of the astronaut is about

a. 42 m/s

b, 30 m/s

c. 21 m/s

d. 35 m/s