# Thread: Deceleration due to Electromagnetism

1. Quick question:

As gravity has a strength of that of electromagnetism, assuming air resistance is negligible, would I be right in saying that if you were to jump off a tower accelerating down at g (~ 9.81 m/sē) then would your deceleration upon impacting the ground be times larger than the acceleration due to gravity? If so, then I suppose gravity is pretty safe, but electromagnetism on the other hand... :-D

2.

3. Originally Posted by x(x-y)
Quick question:

As gravity has a strength of that of electromagnetism, assuming air resistance is negligible, would I be right in saying that if you were to jump off a tower accelerating down at g (~ 9.81 m/sē) then would your deceleration upon impacting the ground be times larger than the acceleration due to gravity? If so, then I suppose gravity is pretty safe, but electromagnetism on the other hand... :-D

You are comparing the electromagnetic force between charged particles to the gravitational force between neutral bodies. Apples and oranges.

4. Originally Posted by DrRocket
Originally Posted by x(x-y)
Quick question:

As gravity has a strength of that of electromagnetism, assuming air resistance is negligible, would I be right in saying that if you were to jump off a tower accelerating down at g (~ 9.81 m/sē) then would your deceleration upon impacting the ground be times larger than the acceleration due to gravity? If so, then I suppose gravity is pretty safe, but electromagnetism on the other hand... :-D

You are comparing the electromagnetic force between charged particles to the gravitational force between neutral bodies. Apples and oranges.
I don't see your point- all contact forces are electromagnetic forces, are they not? So the contact force with the ground is due to electromagnetism. It is a valid situation.

5. Originally Posted by x(x-y)
Originally Posted by DrRocket
Originally Posted by x(x-y)
Quick question:

As gravity has a strength of that of electromagnetism, assuming air resistance is negligible, would I be right in saying that if you were to jump off a tower accelerating down at g (~ 9.81 m/sē) then would your deceleration upon impacting the ground be times larger than the acceleration due to gravity? If so, then I suppose gravity is pretty safe, but electromagnetism on the other hand... :-D

You are comparing the electromagnetic force between charged particles to the gravitational force between neutral bodies. Apples and oranges.
I don't see your point- all contact forces are electromagnetic forces, are they not? So the contact force with the ground is due to electromagnetism. It is a valid situation.
Only if you think that the gravitational force is dominated by the force due solely to electron rest mass.

6. No, all I'm asking, essentially (but applied to a random situation), is whether acceleration due to electromagnetism is times larger than the acceleration due to gravity seeing as electromagnetism is this same magnitude stronger than gravity as a force?

7. Originally Posted by x(x-y)
No, all I'm asking, essentially (but applied to a random situation), is whether acceleration due to electromagnetism is times larger than the acceleration due to gravity seeing as electromagnetism is this same magnitude stronger than gravity as a force?
Electromagnetism is NOT 10^35 times as strong as gravity.

The repulsive force between two electrons is 10^35 (Ithink it is even larger but that is not the point) times the gravitational attraction. But the gravitational force between two neutrons is much larger than the electromagnetic force.

8. Oh, then I have not been reading entirely accurate sources (or they just didn't explain it well).

9. x(x-y) I think your mistake is comparing dissimilar sources for the force. The Earth is a really big gravitational force. The strength of that force drops off according to 1/(r^2), but since the mass is so great, the amount of force exerted by gravity is about the same at the top of the building as it is at the bottom.

The electromagnetic force between the first 1 meter of concrete you crash into and your body has to act against quite a lot of accumulated velocity by the time you reach it, and get close enough for it to start being strong.

10. If rats can be levitated with electromagnetics and defy gravity, as some geological sites might, thenhow strong is that force? They have also now discovered particles that can move faster than light. Major change coming. I am more concerned about the electromagnetic interference in the energy layers and the cloak that sateelites are making aroung the planet. What will this do to our relationship with the rest of a particle electromagnetic universe.

11. Got a reference for rats being levitated with magnetism?

Gimme a P

12. Originally Posted by Johemia
If rats can be levitated with electromagnetics and defy gravity, as some geological sites might, thenhow strong is that force?
If you are referring to diamagnetism:
High Field Magnet Laboratory - The Frog That Learned to Fly
this is nothing new or revolutionary.

They have also now discovered particles that can move faster than light. Major change coming.
Yet to be verified. We are very early in the investigation of this claim, and it is still very possible that it is just of the result of experimental error. Don't get your hopes up yet.

I am more concerned about the electromagnetic interference in the energy layers and the cloak that sateelites are making aroung the planet. What will this do to our relationship with the rest of a particle electromagnetic universe.
Eh?

13. observation show gravity as a constant,so the whole premise is off...EM is a limited field compared to the field of gravity...

14. Not true. Both electromagnetism and gravity extend outward to infinity.

15. hello .
thanks

17. no ! I am a M.sc. communication engineering. (antenna & microwave field)

18. may i suggest the mechanical engineering sub forum...depending on your particular field of course,there are 2 choices there

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