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.
When a book slides on the writing desk, a frictional force acts between the book and the surface of the desk. The direction of frictional force on the book is opposite to the direction of its motion and acts in upward direction, as shown in the following figure.
Solution for question: 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. concept: Force of Friction. For the course CBSE