If an object of weight W is dragged along a horizontal plane by a force acting along a rope attached to the object and making an angle 0 with the plane, and assuming the coefficient of friction is u > 1, then the magnitude of the force needed to move the block is (assume 0 < 0 < 5) Highest if 0 = arctan µ. The highest if you try to lift the object vertically from the plane, compared to when you try to drag it along the plane. The highest when you try to drag it with the rope parallel to the plane, even compared to when you try to lift it from the plane. None of the above.

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