If the world stopped turning...
Discussion
There is no such thing as centrifugal force. Centripetal force is the one i think you are referring to.
ETA: i think one side would roast and the other freeze which would probably crack the crust up a treat so seismic activity would increase amongst other things previously mentioned.
ETA: i think one side would roast and the other freeze which would probably crack the crust up a treat so seismic activity would increase amongst other things previously mentioned.
rjben said:
Wouldn't Centripetal force be the force of gravity required to oppose the centrifugal force? Sorry, don't know much about this?
By the way, I wasn't so concerned with what would eventually happen, just how much heavier everything would be (thanks for the 0.3 % answer!).
No centripetal force is the force which pulls you to the centre of a rotating object. If you spin on a roundabout you experience centripetal force pulling you into the middle. By the way, I wasn't so concerned with what would eventually happen, just how much heavier everything would be (thanks for the 0.3 % answer!).
R300will said:
No centripetal force is the force which pulls you to the centre of a rotating object. If you spin on a roundabout you experience centripetal force pulling you into the middle.
That's funny, roundabouts always tried to push me off the outside... so there is a force more powerful than centripetal. Always thought it was centrifugal - as in centrifuge, throwing stuff to the outside...Simpo Two said:
R300will said:
No centripetal force is the force which pulls you to the centre of a rotating object. If you spin on a roundabout you experience centripetal force pulling you into the middle.
That's funny, roundabouts always tried to push me off the outside... so there is a force more powerful than centripetal. Always thought it was centrifugal - as in centrifuge, throwing stuff to the outside...ETA the 'pushing' feeling is also a reaction force to the centripetal force pulling you in which can be described as centrifugal however i believe it is a fictitious force
Edited by R300will on Tuesday 7th February 23:17
Simpo Two said:
R300will said:
No centripetal force is the force which pulls you to the centre of a rotating object. If you spin on a roundabout you experience centripetal force pulling you into the middle.
That's funny, roundabouts always tried to push me off the outside... so there is a force more powerful than centripetal. Always thought it was centrifugal - as in centrifuge, throwing stuff to the outside...Bedazzled said:
R300will said:
If you spin on a roundabout you experience centripetal force pulling you into the middle.
Yes but if you let go of the roundabout you fall outwards because your inertia carries you away from the centre; we're using centrifugal force to describe the outward 'push' (inertial force) experienced by objects on the surface. If the Earth was spinning fast enough we wouldn't even stay on the surface, we would reach escape velocity!Bedazzled said:
R300will said:
You don't fall outwards you carry on at a tangent to the circle of motion that you were travelling in. Centrifugal force is fictitious however there is such a thing as reactive centrifugal force which is the equal and opposite component of the centripetal force which can give you the pushing feeling when you are following a curved path. As you are constantly accelerating towards the centre of the circle you are being accelerated away be the reaction force.
Tedious wiki semantics; the OP is right objects on the surface will feel heavier as the Earth's rotation slows.Bedazzled said:
R300will said:
There is no such thing as centrifugal force
but wait...R300will said:
there is such a thing as reactive centrifugal force
semantics, not physics Eric Mc said:
It would melt.
R300will said:
ETA: i think one side would roast and the other freeze which would probably crack the crust up a treat so seismic activity would increase amongst other things previously mentioned.
but what if it stayed still, so you would have a 6 month 'day' and 6 month 'night'?
iced over, then melted and dried out then iced up again, or would the water go away some how?
presumably the poles wouldn't be much different
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