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A solid spherical ball, with moment of inertia I=²/₅MR² rolls down the track as shown. It doesn't slip or bounce around at all, but rolls smoothly through the entire track (believe it or not!) M, the mass of the ball is kg and R, the radius of the ball is m.

It starts at a height of H= m and leaves the track at a height of h= m. When it reaches the horizontal end part of the track, where the red star is, it flies off of the track. How far to the right of point A does the ball land?

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