question_answer

When we hit a wall with our hand, we are exerting a force on the wall. Then, why do we feel pain in our hand?

Answer:

When we hit a wall with our hand, we are exerting a force on the wall, or we can say a force on the wall, or we can say a force is acting on the wall (action). On the other side, the wall also exerts force on our hand in opposite direction, causing pain to the hand. This is the wall?s reaction to the action of the hand.