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a ball of mass 250 g is thrown vertically upward from the roof of a building 18 m above the ground with a speed of

a ball of mass 250 g is thrown vertically upward from the roof of a building 18 m above the ground with a speed of 16m/s and at an angle of 45 degrees above the horizontal

(a) to what maximum vertical height does the ball rise?

(b) with what velocity does the ball hit the ground?

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