adita lifts a book from the floor, carries it across the room, and places it on a high shelf. when is adita…

adita lifts a book from the floor, carries it across the room, and places it on a high shelf. when is adita doing work on the book?\nshe does work on the book at no time during this process.\nshe does work only while she carries the book across the room.\nshe does work from the moment she touches the book until she lets it go.\nshe does work as she picks up the book and as she lifts it to the shelf.

adita lifts a book from the floor, carries it across the room, and places it on a high shelf. when is adita doing work on the book?\nshe does work on the book at no time during this process.\nshe does work only while she carries the book across the room.\nshe does work from the moment she touches the book until she lets it go.\nshe does work as she picks up the book and as she lifts it to the shelf.

Answer

Brief Explanations:

El trabajo en física se define como la aplicación de una fuerza en la dirección del desplazamiento. Cuando Adita levanta el libro del piso y lo coloca en un estante, aplica una fuerza en la dirección del desplazamiento (en dirección vertical). Mientras que la lleva a través de la habitación, la fuerza que aplica es vertical (contra la gravedad) pero el desplazamiento es horizontal, por lo que no hay trabajo en ese tramo.

Answer:

She does work as she picks up the book and as she lifts it to the shelf.