what will happen if rotation speed changed ?
2006-06-11 23:23:10 · 8 answers · asked by sam u 1 in Science & Mathematics ➔ Other - Science
hey this is a very good question.
the circumference divided by 24 (i.e. hours) = angular velocity travelled in one hour.
if the rotation changes suddenly or it stops rotating suddenly then due to the inertia that every moving object carries will suddenly travel in the direction of rotation at exactly the angular speed of the earth. so ocean water will move all over the earth and the plates beneath the earth will shift causing severe earthquakes and the volcano will erupt from the gaps due the internal pressure. so all the movable objects will shoot. these objects will move in the direction perpendicular to the centre of the globe in the direction of the motion respectively. there after stopping , there would be more gravitational force exerting on the objects cause the earth while in motion , objects have centrifugal force that is why the weight is different at the time when earth stops rotating and due to the absence of the centrifugal force weight would be more. there day will be 6 months and the night would also be 6 months longer like the north/south pole.
2006-06-11 23:53:02 · answer #1 · answered by chintankalolia 2 · 1⤊ 1⤋
It is 1 rotation per day or 86400 seconds (i.e. 1.157e-4 rps or 6.94e-4 rpm).
The peripheral speed varys from the spot on the surface, but the fastest is the spot on the equatorial line 462.96 m/s. The slowest it the pole - 0 m/s.
The Earth itsef travels through the cosmos with the speed of cca 30 km/h.
None of abve menitioned speeds cannot be changed, but if the speed of rotation would hypotheticaly change, the result wold be the end of the world, because of inertia of the objects on the surface - tsunamis on the water and horrifying earthquakes on the solid ground. All objects would fly in the opposite direction of the speed change. What is it - it is the end of the world.
2006-06-12 01:18:11 · answer #2 · answered by Vlada M 3 · 0⤊ 0⤋
The speed of rotation is changing. The tilt of the axis is changing also.
Imagine a spinning top. When first spun and full of energy, "gyroscopic" effects keep it stable and smooth. As its energy dissipates, the top will begin to wobble before it falls over. Well, the earth is wobbling. That is why a day--or the time it takes for the earth to spin around once on its axis--is not precisely 24 hours in length.
If the day's length changes significantly, then every life form's circadian clock would be out of synch.
2006-06-12 01:20:35 · answer #3 · answered by quntmphys238 6 · 0⤊ 0⤋
Earth rotates at approximately 1000 mph. Needless to say if the Earth suddenly stopped rotating, we (as well as our houses, cars, trees, etc.) would all fly off into the atmosphere at 1000 mph.
It has been proved that Earth's rotation has slowed down due to effects from El Nino, but only by approximately 600 microseconds. (a small yet significant number).
Rather than me copy/pasting, check out this website that explains what would happen in different situations.
2006-06-12 11:18:20 · answer #4 · answered by Bean 3 · 0⤊ 0⤋
Being as the earth is 24000 mile in circumference and it travels one full turn in 24 hours, this means it travels at 1000 miles per hour.
If the speed changed the length of a day would change and also the temperatures would alter.
2006-06-12 01:02:51 · answer #5 · answered by Just a Guy 4 · 0⤊ 0⤋
Approximately 1000 mph at the latitude of the position of the United States.
2006-06-11 23:52:56 · answer #6 · answered by fenx 5 · 0⤊ 0⤋
hasn't the earth BEEN slowing down since the day it first cooled?
2006-06-12 00:07:35 · answer #7 · answered by stephen6789012 1 · 0⤊ 0⤋
1000miles per hours. if it changes, means the end of our life.
2006-06-11 23:25:24 · answer #8 · answered by hsmnt 5 · 0⤊ 0⤋