Uniform Circular Motion: In order to simulate weightlessness for astronauts in training, they are flown in a vertical circle. If the passengers are to experience weightlessness, how fast should an airplane be moving at the top of a vertical circle with a radius of 2.5 km?

A. 79 m/s
B. 310 m/s
C. 260 m/s
D. 160 m/s
E. 510 m/s


Answer: D

Physics & Space Science

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