An airplane with an airspeed of 66km/h lands on a runway where the wind speed is 28km/h .What is the landing speed of the plane if the wind is head-on?
Opposite directions? Subtract (or add if you are doing it as vectors). In Vectors, opposites subtract to give a lesser magnitude.
To determine the landing speed of the plane when the wind is head-on, we need to consider the effect of the wind on the plane's airspeed.
The airspeed of the plane is given as 66 km/h, which means it travels at a speed of 66 km per hour through the air, relative to the air around it.
Now, since the wind speed is 28 km/h, we need to subtract the wind speed from the airspeed to find the plane's landing speed when the wind is head-on.
Thus, the landing speed of the plane can be calculated as:
Airspeed of the plane - Wind speed = Landing speed
66 km/h - 28 km/h = 38 km/h
Therefore, the landing speed of the plane, when the wind is head-on, is 38 km/h.