Question

Now consider the case where, instead of a hand pushing down, a string is pulling up on the book. The book is still lying on a table, in full contact with the table, and not moving. Which of the forces do you include on the free body diagram of the book?

1Normal force of table on the book
2Normal force of book on table
3Normal force of hand on book
4Normal force of book on hand
5Tension of string on book
6Tension of book on string
7Weight of book
8Weight of table
9Force of gravity of the book on the earth

 

Book
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Book

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