In: Physics
spaceship travels at a speed of 0.95c to the nearest star, Alpha Centauri, 4.3 light years (ly) away. How long does the trip take from the point of view of the passengers on the ship?
A. 1.4 ly
B. 1.0 ly
C. 4.5 ly
D. 14 ly
E. 0.44 ly
In Earth's frame, the time taken by the ship is
Now we have to calculate the time in passengers frame of reference. i.e. we have to calculate the proper time, which can be calculated as
For any doubt please comment.