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In the figure, a block slides along a tr...

In the figure, a block slides along a track from one level to a higher level, by inoving through an intermediate valley. The track is frictionless untill the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed `v_(0)` is 8 m/s, the height difference h is 2 m and the coefficient of kinetic friction `mu` is 0.3. The value of d is

A

4 m

B

3 m

C

5 m

D

8 m

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A
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