Lorentz Transformation Equations Questions and Answers Discussion Page.

6.	How fast does a rocket have to move relative to an observer for its length to be contracted to 95% of its original length?
	A.	0.5 c
	B.	0.4 c
	C.	0.3 c
	D.	0.2 c

	Answer: Option C


	Explanation:
	l = 0.95l_o, v =? l = l_0 √1−v2c2 Putting values, we get, 0.95l_o = l_0√1−v2c2 v²/c² = 0.0975 v ≈ 0.3 c.



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Published by:Michael Daani

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