Accelerating to a stop in the Milky Way Galaxy

In summary, the conversation discusses the possibility of a spacecraft traveling to other solar systems by stopping while traveling at a speed of 536,865 mph around the center of the Milky Way. It is noted that stopping would require the same amount of force as accelerating, and that the speed of light is significantly faster than the Sun's speed. The conversation also touches on the concept of relativity and the fact that there is no real benefit in stopping relative to the galactic center. Lastly, the conversation ends with a humorous remark about the potential pressure of physics causing brain pain.
  • #1
Dang3rmouse
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TL;DR Summary
Travelling around the galaxy at zero mph
If the sun is traveling around the center of the Milky Way at a speed of 536,865 mph and we are tagging along with it, couldn’t a spacecraft travel to another solar system by stopping?

Would it be possible currently to slow down from that speed to 0 mph?

And lastly, why does physics make my brain hurt 😂
Thanks
 
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  • #2
Sure. How much force does it take to "stop" it?
 
  • #3
The same as it would take to accelerate to 536,865 mph?
 
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  • #4
Dang3rmouse said:
And lastly, why does physics make my brain hurt 😂
I am guessing that it hurts because there is too much physics pressure from the outside. Perhaps you should put more physics in your brain to equalize the pressure and ease the pain. If that doesn't work, please see a brain specialist because the source of your pain could be something other than physics.
 
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  • #5
Dang3rmouse said:
Travelling around the galaxy at zero mph
Stop the world ! You want to get off ?
536,865 mph is only a trivial 240 km per second.
You will be waiting an eternity for the next one.
 
  • #6
Dang3rmouse said:
The same as it would take to accelerate to 536,865 mph?
Yes. Stopping is just as hard as speeding up when there is nothing to grab on to. That is, more or less, the principle of relativity.
 
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  • #7
Baluncore said:
Stop the world ! You want to get off ?
536,865 mph is only a trivial 240 km per second.
You will be waiting an eternity for the next one.
The speed of light is about ##300,000## km per second, so the Sun takes about ##1,250## years to travel a light year relative to the galactic frame of reference. So, yes, it would be a long time until the next star comes past.
 
  • #8
The basic point here is: There is no real benefit in "stopping" relative to the galactic center over traveling by going in any other direction since the stars in our neighbourhood also orbit the galactic center.
 
  • #9
kuruman said:
I am guessing that it hurts because there is too much physics pressure from the outside. Perhaps you should put more physics in your brain to equalize the pressure and ease the pain. If that doesn't work, please see a brain specialist because the source of your pain could be something other than physics.
I'm saving this for that moment in the future when one of my students complain about a headache from the subject. 😁
 
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FAQ: Accelerating to a stop in the Milky Way Galaxy

1. How fast is the Milky Way Galaxy moving?

The Milky Way Galaxy is moving at a speed of approximately 1.3 million miles per hour, or 2.1 million kilometers per hour.

2. How long does it take for the Milky Way Galaxy to accelerate to a complete stop?

The Milky Way Galaxy is not accelerating to a complete stop. Instead, it is constantly moving and orbiting around the center of the galaxy. This motion will continue indefinitely unless acted upon by an external force.

3. What is causing the Milky Way Galaxy to slow down?

The main factor causing the Milky Way Galaxy to slow down is the gravitational pull of other galaxies and dark matter. As the galaxy interacts with these external forces, its speed and direction may change.

4. How does the acceleration of the Milky Way Galaxy affect our solar system?

The acceleration of the Milky Way Galaxy does not have a direct impact on our solar system. The solar system is held in place by the gravitational pull of the sun, and its orbit around the galaxy is relatively stable.

5. Is the acceleration of the Milky Way Galaxy constant?

No, the acceleration of the Milky Way Galaxy is not constant. It is affected by various factors such as the gravitational pull of other galaxies, dark matter, and the distribution of mass within the galaxy itself. These factors can cause fluctuations in the acceleration of the galaxy over time.

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