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Sample Problems

Relativistic Mass

Example 1:

If you were to board a craft and travel at 0.9 c and had a mass of 60 kg, how massive would you appear to the earth's reference frame?

Example 2:

You observe an element that appears to have a mass of 1.64 x 10^-25 kg when it travels with a velocity of 0.70 c. What would its mass be if it were at rest?

Example 3:

What is the element's name?

From the Periodic table, the element with an atomic mass of 70 amu's is Gallium!