9. A projectile is thrown from the top of a building with an initial velocity of 25m/s in the horizontal direction. If t
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9. A projectile is thrown from the top of a building with an initial velocity of 25m/s in the horizontal direction. If t
9. A projectile is thrown from the top of a building with an initial velocity of 25m/s in the horizontal direction. If the top of the building is 40 m above the ground, how fast will the projectile be moving just before it strikes the ground? a) 44.7 m/s "b) 47.2 m/s c) 50 m/s d) 53.2 m/s e) 55 m/s B
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