A 1.5-kg physics textbook on a bookshelf is leaning against the side of a bookshelf, tilted at an angle of 35° from horizontal (see figure). A friction force of 1.8 N acts on the top of the book, preventing it from sliding down the side of the shelf. Another (unknown) friction force acts on the bottom of the book, preventing the book from sliding to the left. Find the magnitude of the normal force exerted on the book that is a. pushing up on the bottom of the book b. pushing to the left on the top of the book Start by drawing a clearly labeled free-body diagram, showing all of the forces acting on the book.

College Physics
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Chapter1: Units, Trigonometry. And Vectors
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5. A 1.5-kg physics textbook on a bookshelf is leaning against the side of a
bookshelf, tilted at an angle of 35° from horizontal (see figure). A friction
force of 1.8 N acts on the top of the book, preventing it from sliding down
the side of the shelf. Another (unknown) friction force acts on the bottom
of the book, preventing the book from sliding to the left. Find the
magnitude of the normal force exerted on the book that is
a. pushing up on the bottom of the book
b. pushing to the left on the top of the book
Start by drawing a clearly labeled free-body diagram, showing all of the
forces acting on the book.
35⁰
Transcribed Image Text:5. A 1.5-kg physics textbook on a bookshelf is leaning against the side of a bookshelf, tilted at an angle of 35° from horizontal (see figure). A friction force of 1.8 N acts on the top of the book, preventing it from sliding down the side of the shelf. Another (unknown) friction force acts on the bottom of the book, preventing the book from sliding to the left. Find the magnitude of the normal force exerted on the book that is a. pushing up on the bottom of the book b. pushing to the left on the top of the book Start by drawing a clearly labeled free-body diagram, showing all of the forces acting on the book. 35⁰
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