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A box slides from rest from point A down a plane inclined 30 degrees to the horizontal. After reaching the bottom of the plane, the
box moves on the horizontal floor at a distance of 2 m before coming to rest. If the coefficient of friction between the box and plane
and between the box and floor is 0.40, what is the distance of point A from the intersection of the plane and the floor?
A 2.62 m
в) 5.95 m
5.21 m
5.62 m
E
4.87 m

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