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10 A rock of mass is thrown horizontally off a building from a height h, as shown above. The speed of the rock as

10 A rock of mass is thrown horizontally off a building from a height h, as shown above. The speed of the rock as it leaves the thrower's hand at the edge of the building is vo. What is the kinetic energy of the rock just before it hits the ground? (A) angli (D) uno+mngh 2 (B) mo 2 (C) mvo - mgh

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