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17 February 2019 12:42

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Question

Asked by: siri
Subject: Spinnning of an egg using Newton's laws
Question: Why do hot boiled egg spins but not the raw egg ? Explain it based on Newton's laws of motion or inertia
Date: 11 June 2006
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Answers (Ordered by Date)


Answer: Nathaniel Gardner - 20/06/2006 00:50:41
 Well, the answer is really simple. We know that an object in motion stays in motion unless acted on by an outside force (well, in this case, it is a force on the inside of the egg). When you spin a hard boiled egg, the inside is solid and therefore spins with the rest of the egg. But when you spin a raw egg you are essentially spinning only the shell, while the yolk (which has a much greater mass than the shell itself) spins much slower. The slowness of the inside of the egg causes the shell to stop. Therefore, the shell is in motion, but does not stay in motion because of the foce of the yolk. Also, because there is friction between the egg and the surface it is spinning on, it causes it to stop completely.

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