Student Librarian Does Work on Book

In summary: In this case, since the force and displacement are in the same direction, cos\theta = 1 and the formula simplifies to W = Fd. So yes, you would add up all the distances and use the W = Fd formula to find the work done on the book. In summary, the student librarian does 22.0 J of work on the book by picking it up and carrying it to the shelves.
  • #1
Iceclover
59
0

Homework Statement


a student librarian picks up a 22N book from the floor to a height of 1.25m. He carries the book 8.0m to the stacks and places the book on a shelf that is 1.35m high. How much work does he do on the book


Homework Equations



W=Fd

The Attempt at a Solution



Am i just supposed to add up all the distances and then use my W=Fd formula?
 
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  • #2
Iceclover said:

Homework Statement


a student librarian picks up a 22N book from the floor to a height of 1.25m. He carries the book 8.0m to the stacks and places the book on a shelf that is 1.35m high. How much work does he do on the book


Homework Equations



W=Fd

The Attempt at a Solution



Am i just supposed to add up all the distances and then use my W=Fd formula?
Your formula for work is not quite correct. Only the component of the force in the direction of the displacement does work.For example, to find our how much work is done in carrying the book 8.0 meters to the stacks, answer the following question: How much force acts in the direction of the 8 meter displacement?
 
  • #3
what is the correct formula for work then?
 
  • #4
Iceclover said:
what is the correct formula for work then?
[tex] W = Fdcos\theta [/tex]
where [tex]\theta [/tex] is the included angle between the force vector and the displacement vector.
 

Related to Student Librarian Does Work on Book

1. What is the purpose of the Student Librarian working on a book?

The purpose of the Student Librarian working on a book is to assist in the organization and maintenance of the library's collection, as well as provide resources and support for library patrons.

2. What tasks does the Student Librarian typically do when working on a book?

The Student Librarian may be responsible for tasks such as cataloging new books, shelving returned books, and assisting patrons in finding specific books or resources.

3. How much training does a Student Librarian need to work on a book?

The amount of training needed for a Student Librarian to work on a book may vary depending on the specific library and their policies. However, most Student Librarians will receive some form of training or on-the-job experience before being responsible for working on books.

4. What skills are important for a Student Librarian to have when working on a book?

Some important skills for a Student Librarian to have when working on a book include organization, attention to detail, and strong communication skills. They should also have a good understanding of library systems and procedures.

5. How can a Student Librarian's work on a book benefit library patrons?

A Student Librarian's work on a book can benefit library patrons by ensuring that the library's collection is organized and easily accessible. They can also assist patrons in finding the resources they need and provide recommendations for books or materials that may be of interest to them.

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