Question 4

Pions measured in their own rest frame have a mean life of 2.5*10^(-8) s. What distance would you measure a meson to have travelled during one mean life if its speed is eight-tenths the speed of light?

• A. 10.0 m
• B. 3.6 m
• C. 12.5 m
• D. 6.0 m
• E. 7.5 m
• F. 4.5 m

Formula Sheet

Question 3

Question 5

Up to Unit 16 Table of Contents