What speed barrier did Baumgartner break without vehicular power?
The light barrier
The heat barrier
The wind barrier
The sound barrier
Answer
The sound barrier is the speed of sound in air, which is 343 meters per second. Felix Baumgartner broke the sound barrier without vehicular power in 2012, when he jumped from a balloon in the stratosphere and reached a speed of 1,357 miles per hour.
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