Two students need to change the position of a 150 kg piece of equipment inside a laboratory. The distance they need to drag the equipment is 10m. Knowing that the coefficient of kinetic friction between the equipment and the floor is 0.3. The figure below shows a top view, where the arrows represent the friction forces and the forces applied by the students. Given that θ=20° , that the forces A1(vector)  and A2(vector) have the same magnitude and are symmetrical to the horizontal, and that the equipment was dragged at constant speed, calculate the work done by the friction force

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