Physics

To solve this problem, let's analyze the change in mechanical energy by calculating the work done and the change in potential and kinetic energy.

Calculate the work done on the object

The object is undergoing uniformly accelerated vertical motion downward, and the work done is related to the force acting on the object.

Force acting on the object:

The total force on the object is the sum of the gravitational force and the additional upward force due to the acceleration. The gravitational force is:

The net force due to the acceleration is: