A plane must travel 2000 km into a northward 50 km/hr headwind to deliver materials then returns home. The plane's engine propels the plane with a velocity of 150 km/hr.

a. What is the relative velocity of the plane heading to the delivery?
Magnitude:
Direction:

b.What is the total amount of time necessary to complete the trip to deliver the materials?

c. OH ON! The wind shifts at a 90 degree angle due East. What Is the relative velocity of the plane if the wind shifted during the pilot's trip home?
Magnitude:
Direction: