- #1

NAkid

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## Homework Statement

In the figure, a block slides along a track from one level to a higher level, by moving 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 6.1m/s; the height difference h is 0.82m; and the coefficient of kinetic friction is 0.60. Find d.

## Homework Equations

K1+U(gravity,1) + W(friction) = K2 + U(gravity,2)

## The Attempt at a Solution

Setting origin to the point where the block initially is, I have

.5m(v1)^2 + 0 (y1=0) - ukmgd (work due to friction) = 0 (v2=0) + mgy2

and solve for distance d