Projectiles: a Plane Flying at 70

Projectiles: A plane flying at 70.0 m/s suddenly stalls. If the acceleration during the stall is 9.8 m/s² directly downward, the stall lasts 5.0 s, and the plane was originally climbing at 25° to the horizontal, what is the velocity after the stall?

A) 66 m/s at 17° below the horizontal
B) 66 m/s at 17° above the horizontal
C) 80 m/s at 37° below the horizontal
D) 80 m/s at 37° above the horizontal

Correct Answer:

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