The force exerted by the locomotive on the wall is the same in magnitude as the force being exerted by that wall on the given locomotive.
Option A
Explanation:
Newton’s third law of motion gives us the answer for the problem in question. The third law, defines the law of equal and opposite reaction, which states that every action has an equal and opposite reaction. Thus, the action here would be the force put by the locomotive on the wall, whereas the reaction would be the force applied by the given wall on the given locomotive.
Since action and reaction are equal, the force exerted by the locomotive on the wall is the same in magnitude as the force being exerted by the wall on the given locomotive even if the wall breaks, although, the forces are opposite to each other in terms of direction.