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olya-2409 [2.1K]
3 years ago
15

In order to simulate weightlessness for astronauts in training, they are flown in a vertical circle. if the passengers are to ex

perience weightlessness, how fast should an airplane be moving at the top of a vertical circle with a radius of 2.50 km
Physics
1 answer:
sleet_krkn [62]3 years ago
8 0
The answer is "156.6 m/s".

This is how we calculate this;

-N + mg = ma = mv²/r

For "weightlessness" N = 0, so

0 = mg - mv²/r 

g - v²/r = 0 

v =√( gr)
g = 9.8 and r = 2.5km = 2500 m

v = √(9.8 x 2500)

= 156.6 m/s
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