In Order to Simulate Weightlessness for Astronauts in Training,they Are

question 96

Multiple Choice

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