Could Negative Mass Particles Really Repel Each Other?

[Allen_Wolf]

If we imagine two particles A and B. A has positive mass and B has negative mass and initial velocity 0. This happens in a non interfering environment . If both theses has opposite and equal value of mass, shouldn't they be repelling each other?
F=G. (M.-m)/r^2. Value of F should be negative.

 

[berkeman]

If we imagine two particles A and B. A gas positive mass and B has negative mass and initial velocity 0. This happens in a non interfering environment . If both theses has opposite and equal value of mass, shouldn't they be repelling each other?
F=G. (M.-m)/r^2. Value of F should be negative.

Do you have a link to a journal article that discusses negative mass? That would be a big help. Thanks.

 

[willem2]

If you use a negative m in F = ma as well, things get truly bizarre. The force of gravity from rgw positive mass on the negative points away from the positive mass, but the negative mass accelerates towards the positive mass anyway, because the acceleration will now be in the opposite direction of the force. The positive mass is also repelled and this one does accelerate away.

 

[DrStupid]

If we imagine two particles A and B. A gas positive mass and B has negative mass and initial velocity 0. This happens in a non interfering environment . If both theses has opposite and equal value of mass, shouldn't they be repelling each other?
F=G. (M.-m)/r^2. Value of F should be negative.

According to classical mechanics the distance would increase for negative total mass, decrease for positive total mass and remain constant for zero total mass. Both particles would be accelerated in the same direction.

 

[Drakkith]

If both theses has opposite and equal value of mass, shouldn't they be repelling each other?

We can try to use negative mass in our equations and see what comes out, but the reality is that we have utterly no idea what would happen if negative mass existed. All of our laws are based on mass always being positive. Any claim that particles with negative mass will behave a certain way needs to be understood as having an implicit assumption that you can describe the behavior of particles with negative mass with our current laws. That assumption may or may not be true.