How would an aircraft react with different wind conditions(given in the 'details' section)?

1)if groundspeed of aircraft 80knots,and direct tailwind 120knots.which direction flag, hypothetically kept on fuselage of aircraft,fly ?
2)if groundspeed 100knots , direct crosswind of 100knots.
3)if aircrafts maximum speed on full throttle 120knots , there 150knots direct headwind?

1)if groundspeed of aircraft 80knots,and direct tailwind 120knots.which direction flag, hypothetically kept on fuselage of aircraft,fly ? 2)if groundspeed 100knots , direct crosswind of 100knots. 3)if aircrafts maximum speed on full throttle 120knots , there 150knots...

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