You're right to question this! It seems counterintuitive that you'd do work if you're carrying something at a constant velocity. Here's why it's a bit of a trick question:

Work in Physics:

In physics, work is defined as the force applied to an object multiplied by the distance the object moves *in the direction of the force*.

Carrying an Object:

* Force: You are applying a force upwards to counteract gravity and prevent the object from falling.

* Distance: You might be moving horizontally, but the object itself isn't moving vertically. The vertical distance the object moves (in the direction of your force) is zero.

The Bottom Line:

Since the object isn't moving vertically, the distance it travels in the direction of your force is zero. Therefore, according to the physics definition of work, no work is being done on the object.

Where We Get Confused:

We often think of work as any effort we exert. We definitely feel tired carrying something! However, in physics, work is a more precise term.

Here are some examples to illustrate:

* Lifting an object: You are doing work because you're applying a force and the object is moving in the direction of that force.

* Pushing a box across a floor: You are doing work because you're applying a force and the box is moving in the direction of that force.

* Carrying a box across a floor: You are not doing work on the box itself, even though you are exerting effort.

Let me know if that clears things up!