List of formulas related to Theory Of Relativity
Mass-Energy Equivalence
m: mass (kg), E: energy of object (J), c: speed of light (m/s)
$$ E = mc^2 $$ $$ c \approx 3 \times 10^8(m/s) $$Length Contraction
lo: real length of object, l: length observed by an observer moving with speed v
$$ l = l_o \sqrt{1 - \frac{v_2}{c^2}} $$Relativistic Mass
mo: rest mass, m: relativistic mass of object when moving with speed v
$$ m = \frac{m_o}{\sqrt{1 - \frac{v_2}{c^2}}} $$