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Q10. A projectile is thrown from the top of a building with an initial velocity of 30 m/s in the horizontal direction. If the top of the building is 30 m above the ground, how fast will the projectile be moving just before it strikes the ground? A) 49 m/s B) 39 m/s C) 29 m/s D) 69 m/s E) None of the above
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