Calvin and Hobbes are playing a game of catch on the side of a gently sloping hill. Calvin is standing at the top of the hill which slopes down at an angle 15° below the horizontal. From this perch, he throws the ball directly forward (horizontal) with an initial velocity of 11.5 m/s. (a) How far down the hill should Hobbes stand to catch the ball? (Give both the vertical and horizontal displacement from where Calvin releases the ball.) (b) How long is the ball in flight?

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