When you lift a book from the ground to your desk, what kind of work do you do, negative or positive

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21-07-2022
Physics

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When you lift a book from the ground to your desk, what kind of work do you do, negative or positive

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tutorconsortium31 tutorconsortium31 · Answer 1 · 2022-08-02T18:41:24+02:00

When you lift the book, you are doing positive work

Because the force you apply to the book is in the same direction as its displacement, lifting it is considered positive work. Inverse work is being done by gravity. The gravitational potential energy of the object increases as you elevate the book.

What is Work ?

The product of an object's displacement and the component of the applied force that is directed in the direction of the object's displacement is known as the work done by a force.

Positive Work: When a force is applied to an object in its direction of motion, it is said to have been performed positively.
Negative Work Done: When a force is applied to an object in the wrong direction, the work is said to be negative.

Learn more about Work here:

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