A 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 friction force stops the block in a distance d. The block's initial speed v0 is 6.9 m/s, the height distance h is 1.1 m, and uk is 0.60. Determine d. Use g=9.8 m/s/s.

A 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 friction force stops the block in a distance d. The block's initial speed v0 is 6.9 m/s, the height distance h is 1.1 m, and uk is 0.60. Determine d. Use g=9.8 m/s/s.