[Physics] Does the work done by a person equal the work done on the object in this situation

definitionforcesnewtonian-mechanicswork

If you applied a constant force over a floor that has friction on an object, would the work done by the person equal to the work done on the object? Assume that the floor is flat and that the object is being pushed to the right.

For example, if I push an object with 300 N and the work done by me is 200 J, would the work done on the object also be 200 J?

I would say yes because they both share the same forces. These forces would be, if you were to draw them on a force diagram, the force of gravity, friction, the normal force and the force being applied.

In other words, the person and the object would have the same force diagram.

Best Answer

The work done by the person equals the work done on the object by the person, but it is not equal to total work done on the object, because friction forces do work on it as well.

Related Question