Electromagnetic Force: Sitting Facilitation Property

[justadream]

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According to mcat-review,

"It is responsible for the fact that you are not falling through your chair right now (MCAT people love to throw you quirky examples like this one)."


Can someone explain this?

 

[Cawolf]

That's really odd.

The way I interpret it is that the EM force is an attractive force that keeps the chair a chair and your body your body. It is also a repulsive force (normal force). If there was no force then our body would just fall right through the chair towards the gravitational force. The atoms would rearrange and shift to allow it to happen.

 

[ayocaptain628]

thats such a poorly worded explanation and unnecessarily complicated name

all its saying is that the reason why we sit in chairs rather than fall thru them is b/c of the electromagnetic force.
our electrons of our butt and body repel with the electrons of the chair and they repulse which keeps us from falling thru

that's why there are those nitpicks who say technically we can't "touch" something b/c if you use the sitting example again, we are being repulsed so we are "floating" :S