Question

What do you mean by negative mass.​

Answer 1

$\huge \: answer$

In theoretical physics, negative mass is a type of exotic matter whose mass is of opposite sign to the mass of normal matter, e.g. −1 kg. ... Currently, the closest known real representative of such exotic matter is a region of negative pressure density produced by the Casimir effect

Answer 2

Given:-

What do you mean by negative mass?

In theoretical physics, negative mass is a type of exotic matter whose mass is of opposite sign to the mass of normal matter, e.g. −1 kg.Currently, the closest known real representative of such exotic matter is a region of negative pressure density produced by the Casimir effect.

How it works?

With negative mass, if you push something, it accelerates toward you." He and his colleagues created the conditions for negative mass by cooling rubidium atoms to just a hair above absolute zero, creating what is known as a Bose-Einstein condensate.