The meaning of the phrase space is relative is that A) all ...

[Cooldude101]

The meaning of the phrase space is relative is that
 
  A) all observers measure the same speed for a lightbeam.
  B) two observers, both in the same reference frame, observe different lengths for different objects.
  C) two observers, in different reference frames, observe different lengths for different objects.
  D) two observers, in different reference frames, observe different lengths for the same object.
  E) two observers, both in the same reference frame, observe different lengths for the same object.

Question 2

A projectile is thrown upward at 24 with the vertical and returns to the horizontal ground 12.5 s later. Assume no air effects.
 
  (a) How fast was it thrown? (b) How far from its original position did it land? (c) How high above its original position did it go?

[diesoon]

Answer to Question 1

E

Answer to Question 2

(a) 67 m/s (b) 340 m (c) 190 m