A hammer drives a nail into a piece of wood. Identify an action-reaction pair in this situation.

1) The force exerted by the hammer on the nail and the force exerted by the nail on the hammer.

2) The force exerted by the hammer on the wood and the force exerted by the wood on the hammer.

3) The force exerted by the hammer on the nail and the force exerted by the wood on the nail.

4) The force exerted by the nail on the hammer and the force exerted by the wood on the hammer.

The correct identification of the action-reaction pair when a hammer drives a nail into wood is the force exerted by the hammer on the nail and the force exerted by the nail on the hammer.

Explanation:

In the situation where a hammer drives a nail into a piece of wood, according to Newton's third law of motion, every action has an equal and opposite reaction. In this context, when the hammer exerts a force on the nail, there is an action-reaction pair consisting of the force the hammer applies to the nail and the force the nail applies in return to the hammer. This pair is described as the action: the hammer on the nail, and the reaction: the nail back on the hammer. Therefore, the correct identification of the action-reaction pair in this situation is option 1) The force exerted by the hammer on the nail and the force exerted by the nail on the hammer.