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)

Responses

Her push balances the force of friction.
Her push balances the force of friction.

There is an unbalanced force on the book, acting in the direction of motion.
There is an unbalanced force on the book, acting in the direction of motion.

The upward force exerted by the table balances the book’s weight.
The upward force exerted by the table balances the book’s weight.

The forces acting on the book are all balanced.

1 answer

The statement that is NOT true is:

There is an unbalanced force on the book, acting in the direction of motion.

This is because if the book is moving at a constant speed, it is in a state of equilibrium regarding the forces acting on it. The force of Carla's push is balanced by the force of friction opposing the motion, resulting in no unbalanced force.