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2. A ball is thrown from the top of a tower with an initial velocity of 10 m s1 at an angle of 30° with the horizontal. If ithits the ground of a distance of 17.3 m from the back of the tower, the height of the tower is (Take g 10 ms2A) 5 mB) 20 mC) 15 mD) 10 m

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