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A small box is on a ramp tilted at an angle π½ above the horizontal. The box may be subject to the following forces: frictional ( π ), gravitational ( ππ¨ ), pulling or pushing ( πΉπ ) , and normal ( π ). In the following free-body diagrams for the box, the lengths of the vectors are proportional to the magnitudes of the forces. Which figure best represents the free-body diagram for the box if it is accelerating up the ramp?
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