Question

If there were a great migration of people toward the Earth's equator, the length of the day would

decrease because of conservation of angular momentum.
increase because of conservation of angular momentum.
increase because of conservation of energy.
decrease because of conservation of energy.
remain unaffected.

Answer 1

@DemolisionWolf

Answer 2

i'll answer your question with another question-
if you were spining around in a chair, and you had your arms tucked in, then later you stretched them out, do you go faster or slower?

Answer 3

slower? i think

Answer 4

yeah its slower i just tried it..

Answer 5

would the day decrease then?

Answer 6

slower is right, ya.
so, if the earth is moving slower, that means your city will be in the sun longer, so the day would increase.
it's seems backwards, but take a second to think about it and it might make sense.

Answer 7

yeah that makes sense, just like if a person walking in the sun vs. a person running both going to the same destination, the person that is walking will experience more sun right?

Answer 8

yep, good way to say it!

Answer 9

what would this have to do with angular velocity or energy..i think it would be angular velocity bc earth is a shpere

Answer 10

thank you =)

Answer 11

Has to do with angular momentum

Answer 12

yep, i think you'd be right in saying angular momentum

Answer 13

@DemolisionWolf 's example is due to conservation of momentum.

Answer 14

ohhh

Answer 15

thank you so much, makes much more sense now

Answer 16

^_^