Time Dilation Ranking Task?

Question

INTRO:

The graph below (Intro 1 figure) shows the value of the term sqrt(1 - v^2 / c^2) as a function of velocity.

LINK: http://session.masteringphysics.com/problemAsset/1012522/22/1012522.jpg

PART A)

Rank from largest to smallest. To rank items as equivalent, put a parenthesis around the numbers..

1) T = 5 years v = 0.2c

2) T = 20 years v = 0.8c

3) T = 10 years v = 0.4c

4) T = 20 years v = 0.4 c

5) T = 10 years v = 0.8c

PART B)

Rank from largest to smallest. To rank items as equivalent, put a paranthesis around the numbers.

1) T = 10 yearsv = 0.4c

2) T = 5 years v = 0.2c

3) T = 20 years v = 0.8c

4) T = 20 years v = 0.4c

5) T = 10 years v = 0.8c

Answer 1

dunno