The National Aeronautics and Space Administration (NASA) studiesthe physiologica

Question

The National Aeronautics and Space Administration (NASA) studiesthe physiological effects of large accelerations on astronauts.Some of these studies use a machine known as a centrifuge. Thismachine consists of a long arm, to one end of which is attached achamber in which the astronaut sits. The other end of the arm isconnected to an axis about which the arm and chamber can berotated. The astronaut moves on a circular path, much like a modelairplane flying in a circle on a guideline. The chamber is located15 m from the center of the circle. At what speed must the chambermove so that an astronaut is subjected to 5.3 times the acceleration due to gravity?
Enter anumber. 1 m/s Enter anumber.

Explanation / Answer

Chamber should move with a tangential speed of 22.4 m/s Calculations: v^2 / r = 3.4g => v = (3.4 x 15 x 9.8) => v = 22.4 m/s

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