Question

Wind is the relative velocity between the air mass and the ground.

(a) True

(b) False

This question was addressed to me during an interview.

The doubt is from Effect of Wind on Climb Performance and Descent Performance topic in section Climb and Descent Performance of Aircraft Performance

Answer 1

The correct answer is (a) True

For explanation I would say: Wind is the relative velocity between the air mass and the ground. Usually wind is assumed to have only a horizontal component but there exists vertical component which may affect the aircraft at considerable height.