Answer: The airplane travels 429 meters in three seconds.
Step-by-step explanation: To find out how much the airplane travels in three seconds; we need to use the formula for distance: distance = speed x time. We know the speed of the airplane is 143 meters per second, and the time is 3 seconds. So, we can plug in these values into the formula and get:
distance = 143 x 3
distance = 429
Therefore, the airplane travels 429 meters in three seconds.