Ground Velocity: -269.6 km/h [N 5.6 E]

Thread starter anneku
Start date Sep 21, 2019
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Ground Velocity

AI Thread Summary

The ground velocity of the plane is measured at 269.6 km/h [N 5.6 E], indicating its speed relative to the ground. There is a discussion about whether this should be framed as the ground's velocity relative to the plane, suggesting a negative value. However, "ground velocity" typically refers to the object's speed concerning the ground, which is crucial for pilots navigating to their destinations. The distinction emphasizes the importance of understanding velocity in navigation contexts. Accurate terminology is essential for effective communication in aviation.

Sep 21, 2019

anneku

Homework Statement: In the homework questions, it says to "determine the ground velocity of this plane". Would that not be the velocity of the ground in respect to the plane? Why would it be the velocity of the plane in respect to the ground?

Relevant Equations: An aeroplane is travelling with an air velocity of 250km/h and heads due North. The air velocity relative to the ground is 32 km/h [35 N of E]. Determine the ground velocity of this plane.

The velocity of the plane relative to the ground is 269.6 km/h [N 5.6 E]. Shouldn't it be the velocity of the ground relative to the plane is - 269.6 km/h [N 5.6 E]

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Sep 21, 2019

Doc Al

Mentor

Generally "ground velocity" of something means the velocity of that something with respect to the ground. (That's what the pilot is most interested in if he wants to get where he wants to go!)

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