# Physics Course/Relativity

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## Relativity

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

- when

All matter moves at speed less than speed of light has a mass of m_{o}

- when

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

### Wave length of a Momentum

Any momentum travels at speed of light C carries quantum energy will have a wavelength

Which can be easily proved