Dynamics collisions - reduced mass
107504
Why does reduced mass help when talking about two body problems?
51589
Can virtual particle have mass?
92532
Conservation of Mass during Electron - Positron Annihilation
100098
Chemical potential of particles with zero mass
74367
Newtonian mechanics: massless particles
140005
How will a particle with energy less than $V_{\rm min}$ behave?
107902
Is Kinetic Energy stored as (rest) mass?
110980
Why is momentum conserved in inelastic collisions? How is it related to momentum-impulse theory?
84440
Is (rest) mass quantized?
116137
Particle speed and density
143094
Are there perfect elastic collisions in Nature?
65831
Understanding type of force interaction in particle decays
45613
Conservation of energy when slowing an object down
83453
Why isn't energy conserved in this collision problem?
28057
Deriving $p = mv$ from translational symmetry (momentum conservation law)?
76255
Does a gluon have mass or not?
124744
Conservation of $\vec{p}$ in Ballistic pendulum