You drive past a farm, and you see a cow pulling a plow to till a field. You have just learned about Newton's third law, and you wonder how the cow is able to move forward if the plow is exerting an equal and opposite force on the cow. Which of the following explains the movement of the cow and plow? A) The cow pulls harder on the plow than the plow pulls on the cow. B) The friction between the cow's hooves and the ground provides the necessary forward force. C) The plow is not exerting an equal and opposite force due to differences in mass. D) The force exerted by the cow on the plow is directed more horizontally, allowing forward movement.
