This is a confusing question please help. A plane flying to its destination must

Question

This is a confusing question please help.

A plane flying to its destination must adjust for the wind speed Vag (the subscript ag = air relative to ground). The velocity of the plane relative to the air (airspeed) is Vpa (the subscript pa = plane relative to air), and the velocity of the plane relative to the ground (ground speed) is Vpg (the subscript pg = plane relative to ground). What is the relative velocity equation relating these three velocities?

      
Vpg = Vpa - Vag

      
Vpg = Vpa + Vag

      
Vpa = Vpg + Vag

      
Vag = Vpg + Vpa

Explanation / Answer

Correct option is (b)

Vpg = vpa +vag

vpg = vp -vg

vpa = vp - va

vag = va -vg

vpa +vag = vp - va +va - vg = vp - vg

Therefore vpg = vpa +vag

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.