Recently I was actually stuck on a thought about hawing radiation. If quantum fluctuations cause virtual particles to occur from space. So, to maintain the balance of mass in the universe, the particle with -ve energy should be having -ve mass, right? If so, by Newton's equation of gravitation, it should be having anti-gravity properties when near a body with positive body. For the body to fall into the black hole, at a certain point, the velocity of the -ve mass body should be greater than the velocity of light. So black evaporation would not be happening. So does the body with -ve energy has -ve mass also? If so, how will it fall into the black hole? I am just in 10th grade, and I am asking this out of a bot of curiosity. I do sincerely apologize if it is wrong for wasting your precious time.