Question
Adam lifts a book from the floor, carries it across the room, and places it on a high shelf. When is Adam doing work on the book?
Work = Force x Distance
(1 point)
Responses
He does work on the book at no time during this process.
He does work on the book at no time during this process.
He does work only while he carries the book across the room.
He does work only while he carries the book across the room.
He does work from the moment he touches the book until he lets it go.
He does work from the moment he touches the book until he lets it go.
He does work as he picks up the book and as he lifts it to the shelf.
He does work as he picks up the book and as he lifts it to the shelf.
Work = Force x Distance
(1 point)
Responses
He does work on the book at no time during this process.
He does work on the book at no time during this process.
He does work only while he carries the book across the room.
He does work only while he carries the book across the room.
He does work from the moment he touches the book until he lets it go.
He does work from the moment he touches the book until he lets it go.
He does work as he picks up the book and as he lifts it to the shelf.
He does work as he picks up the book and as he lifts it to the shelf.
Answers
GPT-4o mini
The correct response is:
**He does work as he picks up the book and as he lifts it to the shelf.**
Work is defined as the force applied to an object times the distance over which that force is applied. In this scenario, Adam is doing work on the book when he lifts it off the floor (applying an upward force against gravity) and when he places it on the shelf (again applying an upward force to overcome gravity). While carrying it across the room, Adam does not do work on the book in the vertical direction, as the vertical displacement is zero during that part of the process.
**He does work as he picks up the book and as he lifts it to the shelf.**
Work is defined as the force applied to an object times the distance over which that force is applied. In this scenario, Adam is doing work on the book when he lifts it off the floor (applying an upward force against gravity) and when he places it on the shelf (again applying an upward force to overcome gravity). While carrying it across the room, Adam does not do work on the book in the vertical direction, as the vertical displacement is zero during that part of the process.