Kinetic energy is different in different frames of reference?
29928
Is kinetic energy a relative quantity? Will it make inconsistent equations when applying it to the conservation of energy equations?
20440
The reference frame of $c$
104907
Why is the direction of net force on an object and the direction of acceleration of that object different in this problem?
25779
Constants of motion vs. integrals of motion vs. first integrals
103009
$E=mc^2$ resembles non-relativistic kinetic energy formula $E_K = \frac{1}{2}mv^2$?
131705
Relativity Of Simultaneity Confusion
100959
Is conservation of momentum and energy valid for non-inertial frames?
127393
When is temperature not a measure of the average kinetic energy of the particles in a substance?
145113
How can kinetic energy be proportional to the square of velocity, when velocity is relative?
147388
Why do these two ways of understanding constant acceleration give different results?
137250
What happens to the rotational kinetic energy?
9735
Why does a change of direction imply an acceleration?
2366
Is acceleration relative in relativity?
19163
Why does the amount of energy transferred depend on distance rather than time?
85100
Constant $g$ acceleration from astronaut's frame of reference
53455
Relativistic speed/energy relation. Is this correct?
44051
If velocity is relative, how can mass (inertia) be coordinate independent?