A 1.0 [kg] box slides down from a height of 1.0 [m] along a rough inclined plane tilted at 25◦ from the horizontal. It encountered a constant frictional force of 2.0 [N] as it slides down. If the box is initially moving downward with speed of v0 = 3.0 [m/s], what is the kinetic energy of the box at the bottom of the ramp?

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