How much faster would the Earth need to spin...

Ah, but the added spin would outstretch the radius of the earth like a flattening spinning top. Then what would be the speed required given the increase in radius?

1) would it tear the earth's apart?

2) Assuming the earth became am hypothetical neutron star, how much would the mavity be at the surface?

3) Would the neutron star collapse into a black hole?

4) For 5 points, how fast would you have to orbit a neutron star of 1.5 solar mass at the earth's radius?

5) Did you just invent a time machine?
 
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why would you need to know this type of info though?

like wanting to know how many m&m's you can fit in a crow before it would pop.

pointless innit
 
Dimple said:
But what if it slowly came to a halt over say a 24 hour period?
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The deceleration would be equal to 0.005 m/s^2
Meaning a human would experience a force of 0.005 times their body weight, you might feel it. I don't know, but I don't think it would cause much damage.
Aside from that, a day would take 365 days in current time, not many people will survive when it's night.
 
Dimple said:
Why?
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It would get pretty cold during that 6 month night! Not to mention the sudden and catastrophic onset of the nasty things described in Castiel's link (interesting reading that, thanks!) - namely most of Europe, North America, Canada, Northern Asia etc being submerged when the equatorial bulge of ocean water drains towards the poles as there is no longer any centripetal force holding it where it is now!
 
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