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God Plays Dice
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Does an object falling into the sun reach approximately the speed of light?
Vanadium 50 said:Not even close. It would impact at about 600 km/s.
No, assume infinity and look up the escape velocity.DaveC426913 said:Don't you have to know from how far it's falling to provide a value?
You are trying to calculate the gravitational acceleration on the "surface" of the Sun.God Plays Dice said:What about this calc
A= GM/r^2
A= 10^-11 10^30 / 10^12
= 10^7
That's pretty fast, does this not apply?
https://en.wikipedia.org/wiki/Sunnasu said:You are trying to calculate the gravitational acceleration on the "surface" of the Sun.
If you do it correctly you will get about 300 m/s^2.
But this is not a speed anyway. You cannot compare this with the speed of light (or any speed).
I think if you drop it infinitely, it's the escape velocity.DaveC426913 said:Don't you have to know from how far it's falling to provide a value?
No, that formula is an acceleration and not a velocity.Stephanus said:https://en.wikipedia.org/wiki/Sun
I think it's the escape velocity. If you put it infinitely. I'm no physicist, just using logic.
Vanadium is right
Yes, I was about to follow up with the assumption that it falls from infinity.Stephanus said:I think if you drop it infinitely, it's the escape velocity.
When an object falls into the sun, it will be pulled in by the sun's strong gravitational force and eventually be consumed by the intense heat and pressure in the sun's core. It will also be vaporized by the sun's high temperatures.
The amount of time it would take for an object to fall into the sun depends on its starting distance from the sun and its velocity. For example, if an object was dropped from a distance of 1 AU (the distance from the Earth to the sun) and had no initial velocity, it would take approximately 8 minutes and 20 seconds to reach the sun.
No, any material that falls into the sun will be destroyed due to the extreme temperatures and pressure. Even the strongest materials on Earth would not be able to withstand the conditions in the sun's core.
To our knowledge, no object has ever naturally fallen into the sun. However, spacecrafts have been intentionally crashed into the sun for scientific purposes. For example, NASA's Ulysses spacecraft was deliberately sent into the sun in 2009 after completing its mission.
If a large enough object were to fall into the sun, it could potentially disrupt the delicate balance that allows Earth to sustain life. However, the chances of this happening are extremely rare. The sun's strong gravitational force also helps to protect the planets in our solar system from any objects falling into the sun.