The image you sent does not show an example of the strong nuclear force in action.
The strong nuclear force is one of the four fundamental forces of nature. It is the strongest of the four forces, and it holds the protons and neutrons together in the nucleus of an atom. The strong nuclear force is also responsible for the binding of quarks together to form protons and neutrons.
The image above is a Feynman diagram of the strong nuclear force. It shows the exchange of a pion between a proton and a neutron. The pion is a force carrier particle, and it mediates the strong nuclear force between nucleons (protons and neutrons).
Another example of the strong nuclear force in action is the fusion reaction in the sun. Fusion is the process by which two or more atomic nuclei join together to form a heavier nucleus. The strong nuclear force is responsible for holding the nuclei together during the fusion reaction.
Therefore, the image that shows an example of the strong nuclear force in action is the Feynman diagram.