4. Which of the following systems does NOT represent a force pair? A When you push on a bike's brakes, the friction between the tires and
the road increases.
Copyright McGraw-Hill Education
B When a diver jumps off a diving board, the board pushes the diver up.
C When an ice skater pushes off a wall, the wall pushes the skater off
of the wall.
D When a boy pulls a wagon, the wagon pulls back on the boy.