An Earth observer sees a spaceship at an altitude of 980 m moving ...

[skymedlock]

An Earth observer sees a spaceship at an altitude of 980 m moving downward toward the Earth at a speed of 0.600c. What is the spaceship's altitude as measured by an observer in the spaceship?
 a. 588 m
  c. 1630 m
  b. 784 m
  d. 1270 m

Question 2

A rocket ship is 74.0 m in length when measured before leaving the launching pad. What would its velocity be if a ground observer measured its length as 60.0 m while it is in flight? (c = 3.00  108 m/s)
 a. 1.76  108 m/s
  c. 1.98  108 m/s
  b. 0.980  108 m/s
  d. 1.15  108 m/s

[AmberC1996]

Answer to Question 1

B

Answer to Question 2

A

[skymedlock]

TYSM

[shewald78]

Excellent