A boy 100 m above the ground in a tree throws a ball for, Ask an Expert

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A boy 10.0 m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. If the boy throws the ball upward at 40 degrees above the horizontal, at 9.00 m/s.

How far from the tree will the dog catch the ball?

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