The speed of a spacecraft moving between Earth and Mars at an instant when Earth
and Mars are 2.4 × 1011 m apart is measured as v = 0.8c. The distance between the
planets is measured in the fixed frame of reference in which Earth and Mars are at
rest. What is the distance between Earth and Mars in the frame of the spacecraft? In
the frame of the spacecraft, how much time elapses between the spacecraft crossing
Earth and the spacecraft reaching Mars?
Comments
Leave a comment