Engineering Board Exam Reviewer · Physics · hard
A spaceship travels at 0.8c relative to Earth. A clock on the ship measures 10 years. How much time elapses on Earth?
- 6.00 years
- 8.00 years
- 16.67 years
- 10.00 years
Answer
C. 16.67 years
Solution
= 1/sqrt(1 - 0.64) = 1.6667. t = t0 = 1.6667(10) = 16.67 years (time dilation).
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