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work=force*distance.
The work he did is the same as work done on friction.
The work he did is the same as work done on friction.
Work = Force * Distance * cos(theta)
In this case, the force applied by Russell is the horizontal force of 95.0 N, the distance is 15.0 m, and theta represents the angle between the force and the displacement. Since the displacement is horizontal and the force applied is also horizontal, the angle between them is 0 degrees or cos(0) = 1.
Substituting the given values into the formula:
Work = 95.0 N * 15.0 m * 1
Work = 1425 J
Therefore, Russell does 1425 J of work to overcome the force of friction.