Do action and reaction pairs cancel one another?

This is the action part of the pair: a burro pulling a cart. The burro pulls on the cart with force F. How does the burro get the cart to move? The cart pulls on the burro with force -F.

The cart has two forces acting on it in the vertical axis: gravity and the ground's upward push. These forces cancel each other out. Gravity's attraction gives the cart a weight W, downward. The ground provides a reaction force -W, upward.

The burro is pulling, so let's take a look at the forces acting on the cart in the horizontal direction. Suddenly, the cart appears to be moving only because of the burro's force.

Hope this is helpful, Steve.

No, action and reaction pairs do not cancel each other. They act on different objects and have equal magnitude but opposite directions, according to Newton's third law of motion.

No, action and reaction pairs do not cancel one another. According to Newton's third law of motion, for every action, there is an equal and opposite reaction. These forces act on different objects and can have different effects, but they do not cancel each other out.