Considering the direction of the wind, it is found that the jet travels faster than the sound during it's journey.
<h3>What is the ground speed?</h3>
The jet's speed, considering that there is a tailwind, is given by:
J = Plane speed + Wind speed.
In this problem, we have that the speeds are given as follows:
Hence the jet's speed is given by:
J = 550 + 120 = 670 knots.
670 knots > 661 knots, hence the jet travels faster than the sound during it's journey.
A similar problem, involving plane and wind's speed, is given at brainly.com/question/25547425
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