Question

Which speed is at the sound barrier plz tell meh will mark brainless

Answer 1

your answer is 343 mps. THIS IS 100% THE CORRECT ANSWER!

hope I helped! :)

Explanation:

I got it correct on my quiz

Answer 2

343 metres per second

In dry air at 20 °C (68 °F), the speed of sound is 343 metres per second (about 767 mph, 1234 km/h or 1,125 ft/s).