To push a piece of heavy furniture across the carpet usually takes more force to get it moving than it takes to keep is moving. This is because
A) of Newton's first law.
B) of Newton's third law.
C) the static coefficient of friction is larger than the kinetic coefficient.
D) the kinetic coefficient of friction is larger than the static coefficient.
E) of Newton's second law.

Question

Quizplus · Accepted Answer

The static coefficient of friction, which is the frictional force resisting the initiation of motion, is typically larger than the kinetic coefficient of friction, which is the frictional force resisting motion that is already occurring. This means it takes more force to overcome the initial resistance (static friction) to get the furniture moving than it does to keep it moving (kinetic friction).

To Push a Piece of Heavy Furniture Across the Carpet