2 ms·

> Isn't it still an open question if matter is attracted to antimatter Conservation of momentum (force*time) means they both experience the same force. The att

• phkahler 3y ago
  >> Conservation of momentum (force*time) means they both experience the same force. That's right. I'm just saying it hasn't been confirmed. Wouldn't that be some exciting new physics though? It could explain why there isn't any around, why galaxies apparently aren't made of it, and why there is annihilation radiation sourced from the edge of galaxies. ;-)
  • Georgelemental 3y ago
    Violating conservation of momentum like that would allow generating arbitrarily large amounts of energy for free.
    • phkahler 3y ago
      Yes it would. Maybe that's what's accelerating the expansion of the universe ;-)
• ben_w 3y ago
  A mass with negative effect on local curvature, would I think still follow the same geodesics (i.e. fall down). Same in Newton, though there it would be GMm/r^2 = F = ma but both m have the same sign so acceleration is the same regardless of value (including -ve), though if M was negative then both +ve and -ve valued m would accelerate away rather than towards. Conservation of momentum and energy is conserved because they're mv and 1/2mv^2, so an isolated equal and opposite +- pair co-accelerating has a total of zero of both all times.