Carla demonstrates Newton's First Law of Motion by slowly pushing a book across a table. The book moves at a constant rate of speed so long as she is pushing it. Which of the following is NOT true?
(1 point)
Her push balances the force of friction.
There is an unbalanced force on the book, acting in the direction of motion.
• The forces acting on the book are all balanced.
The upward force exerted by the