Question 1
A pencil lying on a table is flicked so that it slides along the table. It slows down and stops. Why?
The right answer is the one marked above.
The table exerts a force on it opposing its motion. That force is friction, and it acts along the surfaces in contact.
"The force is used up" is the tempting answer, but a force is not a substance an object carries and spends. Nothing slows down unless a force acts on it — that is the first law.