The figure shows a right-angled construction frame ABC. When measured at rest, it has dimensions as follows: AB = 18.9 m, AC = 10.0 m, and BC = 16.0 m. This frame is now given a new velocity of 0.420c, relative to Earth, in a direction parallel to AC. How long is part BC of this frame with the new velocity as measured by Earth-based engineers?
A)16.0 m
B)14.0 m
C)12.0 m
D)10.0 m
E)18.0 m

Question

The figure shows a right-angled construction frame ABC. When measured at rest, it has dimensions as follows: AB = 18.9 m, AC = 10.0 m, and BC = 16.0 m. This frame is now given a new velocity of 0.420c, relative to Earth, in a direction parallel to AC. How long is part BC of this frame with the new velocity as measured by Earth-based engineers? 
A)16.0 m 
B)14.0 m 
C)12.0 m 
D)10.0 m 
E)18.0 m

Quizplus · Accepted Answer

The Answer of The figure shows a right-angled construction frame ABC. When measured at rest, it has dimensions as follows: AB = 18.9 m, AC = 10.0 m, and BC = 16.0 m. This frame is now given a new velocity of 0.420c, relative to Earth, in a direction parallel to AC. How long is part BC of this frame with the new velocity as measured by Earth-based engineers? 
A)16.0 m 
B)14.0 m 
C)12.0 m 
D)10.0 m 
E)18.0 m

The Figure Shows a Right-Angled Construction Frame ABC