clear me a concept

Dog on a merry go round125 points One day after hours at a carnival a dog finds the merry-go-round. The merry-go-round is still, and the dog hops on the merry-go-round and comes face to face with a purple ride-on horse. He then walks around the edge of the merry-go-round at a constant speed to see what else is there. Eventually after some time t he winds up back at the purple horse. By what angle in degrees has the merry-go-round rotated during that time?

Guys... has anyone cracked this one... I m a !0 grader and am not awre of such higher concepts...

Easy Math Editor

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`\sum_{i=1}^3`	$\sum_{i=1}^3$
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Comments

Think it is not tough!! It utilizes conservation of angular momentum. I hope you are familiar with that.

Balaji Dodda - 8 years, 3 months ago

Arjun, please do not post problems on the current weeks problem sets to discussions. A better way to get help, would be to try to identify what it is you do not understand about the problem and then post a question about that concept, not about the specific problem. For instance, try to figure out what aspects of angular momentum you are struggling with, and ask a question about that.

Peter Taylor Staff - 8 years, 3 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$