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work-applying a force to an object and the object moving in the direction the force is applied

so example:

when you apply an upward force onto a box and move the box upward, you have done work.

however, once you start walking with that box, the box is moving forward but you are applying force upward so you are not doing the same work.

when the force and motion is not in the same direction, there is no work. when you're walking, your motion is going foward and the box you're holding, which is the force, is up so there is no work.So there fore the work you think your applying is not actually happening.

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