Which of the following describes how net work is determined?

The difference in the initial and final forces applied

The net force on an object applied for a brief second

The initial force applied to an object over a distance

The net force on an object applied over a distance

Explanation:

When several forces act act over an object, the vectorial force is call net force.

Every force can do work, as the work  () is the product of the force  () and the parallel displacement (D) caused by such force.

When several works are done on a object the net work is the sum of all the works done by the forces acting on the object.

Such net work is equivalent to a work done by the net force over the net parallel displacement, which is the distance from the starting point and the ending point.

Hence,  the net work can be determined as "The net force on an object applied over a distance", which is the last statement.