In the figure, a 4.4 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is v0 = 5.4 m/s, the height difference is h = 1.1 m, and μk = 0.626. Find d.

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