Is Kinetic Energy Really Constant in Constant Velocity Motion?

[Muhammad asad]

I am really confused here. I have studied that if the kinetic energy of a moving body is not changing then the net work being done on the object is equal to zero. But when we are talking about a body moving upwards at constant velocity there is no change in its kinetic energy but there is still an increase in the g.p.e of the object. How is this possible. What I think is that the energy transferred by the positive work we are doing on the object is converted and stored as g.p.e by the negative work being done by gravity on the object. Please! someone correct me if I am wrong here.

 

[Doc Al]

I have studied that if the kinetic energy of a moving body is not changing then the net work being done on the object is equal to zero.

That's right. The net work must include all work done on the body, including the work done by gravity.

But when we are talking about a body moving upwards at constant velocity there is no change in its kinetic energy but there is still an increase in the g.p.e of the object. How is this possible.

Note that the net work is still zero.

What I think is that the energy transferred by the positive work we are doing on the object is converted and stored as g.p.e by the negative work being done by gravity on the object.

Nothing wrong with that.

 

[Muhammad asad]

Thanks alot. Really appreciate your help