Answer:
L = 8.66 m
Explanation:
The length measured by the moving observer is related to the true length is given by
L = L₀ √1 - (v²/c²)
Where L₀ is the length of the spaceship as measured by person A, v is the speed of spaceship of person A and c is the speed of light c = 3.8x10ᵃ m/s
L = 10√1 - (0.5c)²/c²
L = 10√1 - (0.5*3.8x10ᵃ)²/3.8x10ᵃ ²
L = 8.66 m
Therefore, the Person B would measure the spaceship length to be 8.66 m
