An airplane with an airspeed of 60 km/hr lands on a runway where the wind speed is 40 km/hr.

(a) What is the landing speed of the plane if the wind is head-on?
(b) What is the landing speed if the wind is a tailwind, coming from behind the plane?

1 answer

a. V = Vp+Vw = 60 + (-40) = 20 km/h.

b. V = 60 + 40 = 100 km/h.