Question: A person pulls on a 7.1kg crate as it slides across a level floor using a rope attached to the center of the crate. The

A person pulls on a 7.1kg crate as it slides across a level floor using a rope attached to the center of the crate. The floor has a non-zero coefficient of kinetic friction. The crate began with a speed of 1.8m/s and speeded up to 2.5m/s while being pulled a horizontal distance of 2.0 meters.If the force exerted by the rope is 20 Newtons, and the rope pulls completely horizontally, what is the work in J done by the friction force between the crate and floor?

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