An astronaut on a spaceship traveling at 0.75c relative to Earth measures his ship to be 23

Question:

An astronaut on a spaceship traveling at 0.75c relative to Earth measures his ship to be 23 m long. On the ship, he eats his lunch in 28 min.
(a) What length is the spaceship according to observers on Earth?
(b) How long does the astronaut's lunch take to eat according to observers on Earth?
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: