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OK - I'm having problems visualizing a relative velocity problem. Please let me know if Im on the right track... problem involves a jet with initial V of 300 mi/h due east that encounters winds at 100 mi/h in a direction 30 degrees north of east. I need to calculate new velocity relative to the earth (or ground).

I believe my relative velocity equation should be Vpe (plane to earth) = Vpa (plane to air) + Vae(air to earth). I'll solve for Vpe. Does this seem right? And since I'm asked for the new velocity (vector), i believe I'd take the arccos of the Vpa/Vpe to get the angle?

Sound like a good approach?

Thanks again,

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# Relative Velocity Discussion

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