A mover slides a refrigerator weighing 650 N at a constant velocity across the floor a distance of 8.1 m. The force of friction between the refrigerator and the floor is 230 N. How much work has been performed by the mover on the refrigerator?

1863 J

Explanation:

F = Force moving the object

f = Frictional force = 230 N

The forces in the horizontal direction have the force balance

So, the force by which the object is being pushed is

s = The displacement of the object = 8.1 m

Work done is given by

The work done by the mover is 1863 J.

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