Calculate Ground Speed of an Airplane
When an airplane is flying through the air, it moves with an airspeed of 400.0 m/s. However, if there is a headwind blowing in the opposite direction of the airplane's travel, with a velocity of 35.0 m/s, the airplane's ground speed is affected.
The ground speed of the airplane is the combination of its airspeed and the wind's effect on its movement. In this case, the velocity of the plane relative to the air is 400.0 m/s to the east, while the velocity of the air relative to the ground is -35.0 m/s in the opposite direction of the airplane's travel.
By adding the velocity of the plane relative to the air (+400.0 m/s) with the velocity of the air relative to the ground (-35.0 m/s), we find that the airplane's ground speed is 365.0 m/s to the east. This calculation accounts for the impact of the headwind on the airplane's overall movement.