contestada

A jetliner flies east 2000 miles from San Francisco to Chicago. It has an average air speed of 600 mph relative to the air. What is the velocity of the jetliner relative to the earth if there is no wind blowing?
A 600mph, west
B 0mph, east
C 0mph, west
D 600mph, east

Respuesta :

The answer is D 600mph east

Answer:

Option (D)

Explanation:

Velocity of jet with respect to air = velocity of jet with respect to ground - velocity of air with respect to ground

Vj,a = Vj,g - Va,g

600 mph east = Vj,g - 0

Beacause air is not moving

Vj,g = 600 mph east

Thus, the velocity of jet with respect to ground is 600 mph towards east.