Multiple Choice
A plane moving 200 m/s horizontally fires a projectile with speed 50 m/s in a forward direction 30.0° below the horizontal.At that instant,what is the speed of the projectile with respect to a stationary observer on the ground?
A) 245 m/s
B) 250 m/s
C) 268 m/s
D) 293 m/s
Correct Answer:

Verified
Correct Answer:
Verified
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