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An aircraft is decending toward a runway at an angle of 20 degrees to the horizontal...

An aircraft is decending toward a runway at an angle of 20 degrees to the horizontal and a speed of 180 km/h.

a) Sketch the velocity vector described above.
b) Calculate the y-component of the velocity (Make sure it makes sense from part a)
c) If the aircraft is 5000m above the ground how long will it take before the aircraft lands?
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