# physics

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A 9.0-kg box of oranges slides from rest down a frictionless incline from a height of 5.0 m. A constant frictional force, introduced at point A, brings the block to rest at point B, 19 m to the right of point A.

What is the coefficient of kinetic friction, k , of the surface from A to B?
0.33
0.11
0.26
0.52
0.47

• physics -

0.26

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