Law of non weightlesness

[taylordnz]

If the most elementary particles (beyond the hypothetical hypoquark, gluon, photon) and are weightless wouldn't larger particles made of them weigh notthing either and as they have no mass wouldn't the forces not be able to act upon them and not able to interact with other particles?

whats your veiw on this?

[mathman]

Photons and gluons have zero REST mass, but they travel at the speed of light. However, they have energy. The equivalence of mass and energy resolves your question. For example, a high energy photon can (in the presence of a nucleus) change into an electron and a positron.