If a spaceship of proper length 40 m is measured to have a length 30 m, how fast is it moving?
A) 0.50 c
B) 0.81 c
C) 0.75 c
D) 0.66 c
E) 0.43 c

Name: If a spaceship of proper length 40 m is measured to have a length 30 m, how fast is it moving? A) 0.50 c B) 0.81 c C) 0.75 c D) 0.66 c E) 0.43 c
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The Answer of If a spaceship of proper length 40 m is measured to have a length 30 m, how fast is it moving?
A) 0.50 c
B) 0.81 c
C) 0.75 c
D) 0.66 c
E) 0.43 c

If a Spaceship of Proper Length 40 M Is Measured