Author Question: Three spaceships A, B, and C are in motion as shown in the figure. The commander on ship B observes ... (Read 67 times)

dakota nelson · **on:** Jul 29, 2018

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 0.83c.

The commander also observes ship A, advancing in the rear, with a relative velocity of 0.48c. As measured by commander on ship B, at what speed is ship A approaching ship C?

A) 1.3c
B) 0.94c
C) 0.25c
D) 0.58c
E) 2.2c

Question 2

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