Question

Your writing desk has a sloping top. A book placed on it starts sliding down. Draw the desk and
show the direction of frictional force acting on it.​

Answer 1

Answer:

Suppose your writing desk is tilted a little, a book kept on it starts sliding down. Show the direction of frictional force acting on it. Ans. The book moves downwards.

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Answer 2

Answer:

when a book slides on a writing desk a friction force acts between the book and the surface of the desk the direction of friction force on the book is opposite to the direction of its motion and acts in upward direction

Explanation:

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