A Rocket Ship of Rest Length 100 M Is Moving $\mu$

Multiple Choice

A rocket ship of rest length 100 m is moving at speed 0.8c past a timing device which records the time interval between the passage of the front and back ends of the ship.This time interval is:

A) 0.20 $\mu$ s
B) 0.25 $\mu$ s
C) 0.33 $\mu$ s
D) 0.52 $\mu$ s
E) 0.69 $\mu$ s