A box rests on a rough board 10 meters long.When one end of the board is slowly raised to a height of 6 meters above the other end, the box begins to slide.The coefficient of static friction is:
A)0.8
B)0.25
C)0.4
D)0.6
E)0.75

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The Answer of A box rests on a rough board 10 meters long.When one end of the board is slowly raised to a height of 6 meters above the other end, the box begins to slide.The coefficient of static friction is:
A)0.8
B)0.25
C)0.4
D)0.6
E)0.75

A Box Rests on a Rough Board 10 Meters Long