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A ball is shot from the ground into the air. At a height of 6.9 m,...

A ball is shot from the ground into the air. At a height of 6.9 m, its velocity is V=7.5i+6.9j m/s, with i horizontal and j upward. (a) To what maximum height does the ball rise? (b) What total horizontal distance does the ball travel? What are the (c) magnitude and (d) angle (below the horizontal; give as negative) of the ball's velocity just before it hits the ground?

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