Recall, from this chapter, that the factor gamma (γ) governs both time dilation and length contraction, where
When you multiply the time in a moving frame by γ, you get the longer (dilated) time in your fixed fame. When you divide the length in a moving frame by γ, you get the shorter (contracted) length in your fixed frame.
Pretend that the starship in the problem 1 is somehow traveling at c with respect to Earth and it fires a drone forward at speed c with respect to itself. Use the equation for the relativistic addition of velocities to show that the speed of the drone with respect to Earth is still c.
problem1
Recall, from this chapter, that the factor gamma (γ) governs both time dilation and length contraction, where
When you multiply the time in a moving frame by γ, you get the longer (dilated) time in your fixed fame. When you divide the length in a moving frame by γ, you get the shorter (contracted) length in your fixed frame.
A starship passes Earth at 80% of the
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