How Fast Would a Rocket Have to Move Past a Ground

question 45

Multiple Choice

How fast would a rocket have to move past a ground observer if the latter were to observe a 9.4% length shrinkage in the rocket length? (c = 3.00 × 10⁸ m/s)

• A)2.98 × 10⁸ m/s
• B)2.72 × 10⁸ m/s
• C)1.27 × 10⁸ m/s
• D)0.420 × 10⁸ m/s
• E)​0.920 × 10⁸ m/s

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