Question

Part A If you were to travel to a star 155 light-years from Earth at a speed of 2.70 x 10 m/s, what would you measure this distance to be? 180 AS - OO ? Submit Request Answer

Answer 1

We used relativistic length contraction to answer this question because the speed is comparable to the speed of light. It is given by

$l=l_o\sqrt{1-\frac{v^2}{c^2}}$

We Substitute all the values now

(2.7 x 108)2 1 = 15571 - 3 x 108)2

l= 67.6 ly

This is the answer.