A space probe has an 24.7-m length when measured at rest. What length does an observer at rest measure when the probe is going by at a speed of 0.860c?
A) 25.2 m
B) 6.43 m
C) 9.19 m
D) 12.6 m

Question

Quizplus · Accepted Answer

The length contraction formula is L = L₀√(1-v²/c²), where L₀ is the rest length, v is the velocity, and c is the speed of light. Plugging in the values: L = 24.7√(1-(0.860)²) = 12.6 m.

A Space Probe Has an 24