Velocity addition: 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

Velocity addition: 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 Velocity addition: 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

Velocity Addition: Three Spaceships A, B, and C Are in Motion