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Velma and Mort Pass Each Other, in Rocket Ships, at a Relative

Question 56

Multiple Choice

Velma and Mort pass each other, in rocket ships, at a relative velocity of half of lightspeed. Velma has an ice cream cone which will melt in 5 minutes if not refrigerated. She removes her cone from the refrigerator, and allows it to melt. According to Velma, how long does it take for her own cone to melt?


A) 5 minutes
B) more than 5 minutes
C) less than 5 minutes
D) It could be either more than 5 minutes, or 5 minutes, depending on which observer is at rest.

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