# Answer to Question #15871 in Mechanics | Relativity for MaKalaa

Question #15871

An airplane flies north at a speed of 150 km/h relative to the air through which it flies. If there is a tail wind of 50 km/h, what is the plane's velocity relative to the ground?

Expert's answer

The wind direction coincides with the direction of airplane flight, so their velocities are added:

V = 150[km/h] + 50[km/h] = 200[km/h].

So, the plane's velocity relative to the ground is 200[km/h].

V = 150[km/h] + 50[km/h] = 200[km/h].

So, the plane's velocity relative to the ground is 200[km/h].

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