World Science Scholars

41.3 Implications for Mass: Intuitive Explanation

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    • Imagine a factory has created two identical blocks of wood. One of the blocks is stationary next to you, while the other has been set in motion and is speeding by you. What would you say about the density of the moving block compared to the stationary block?

      Hint: The density of an object is its mass divided by its volume.

    • Density of the block will increase as d = m/v
      so as mass increases with increasing velocity and length is lorentz contracted
      thus both factor will lead to increase in density

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