A Plane Moving 200 M/s Horizontally Fires a Projectile with Speed

question 23

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

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