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

The magnitude of the work performed by the mover is 1863 J.

Explanation:

The work can be found using the following equation:

Where:

F: is the force

d: is the displacement = 8.1 m

First, we need to find the net force in the horizontal direction, as follows:

a = 0 since the mover slides a refrigerator at a constant velocity.

: is the friction force.

Then, the work is:

Therefore, the magnitude of the work performed by the mover is 1863 J.

I hope it helps you!                              

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation: