Physics Course/Relativity

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According to Newton Mass of any moving object remains the same regardless of speed travel . According to Einstein any moving object has Mass changes with speed travel

Relativity Theory

Change in Mass relate to speed travels

Speed of light is alsway constant , v = C . When matter moves at speed of light, matter no longer has mass . Observed fron Plank in experiment with Black Body Radiation

m = 0 when v = C

All matter moves at speed less than speed of light has a mass of mo

m = m_o when v < C

Therefore for any matter moving at speed less than speed of light but not equal to the speed of light

m = m_o (1 + \frac{v}{C})

Wave length of a Momentum

Any momentum travels at speed of light C carries quantum energy E = h \frac{C}{\lambda} will have a wavelength

\lambda = \frac{h}{p} = \frac{h}{C} \frac{1}{m}

Which can be easily proved

pC = h \frac{C}{\lambda}
\lambda = \frac{h}{p} = \frac{h}{C} \frac{1}{m}