Three spaceships A, B, and C are in motion, as shown in the figure. The commander on ship B observes ship C approaching with a relative velocity of 0.78c. The commander also observes ship A, advancing in the rear, with a relative velocity of 0.31c. What is the velocity of ship C, relative to an observer on ship A?
A) 0.88c
B) 0.38c
C) 1.4c
D) 0.62c
E) 1.1c

Question

Three spaceships A, B, and C are in motion, as shown in the figure. The commander on ship B observes ship C approaching with a relative velocity of 0.78c. The commander also observes ship A, advancing in the rear, with a relative velocity of 0.31c. What is the velocity of ship C, relative to an observer on ship A? 
A) 0.88c 
B) 0.38c 
C) 1.4c 
D) 0.62c 
E) 1.1c

Quizplus · Accepted Answer

The Answer of Three spaceships A, B, and C are in motion, as shown in the figure. The commander on ship B observes ship C approaching with a relative velocity of 0.78c. The commander also observes ship A, advancing in the rear, with a relative velocity of 0.31c. What is the velocity of ship C, relative to an observer on ship A? 
A) 0.88c 
B) 0.38c 
C) 1.4c 
D) 0.62c 
E) 1.1c

Three Spaceships A, B, and C Are in Motion, as Shown