- #1
Misr
- 385
- 0
why does pressure at a point affects in all directions?
gravity only affects downwards,so what makes pressure affect in all directions?
may be the pressure affects upwards as a reaction to the fluids weight(that affects downwards)
[PLAIN]http://img208.imageshack.us/img208/9738/unled123.jpg
so, what about this lateral pressure?where does this lateral pressure come from?
I also don't understand
how does buoyant force result from the difference in pressure between the surface of the cylinder in the fluid and its base?I can't imagine this at all.
gravity only affects downwards,so what makes pressure affect in all directions?
may be the pressure affects upwards as a reaction to the fluids weight(that affects downwards)
[PLAIN]http://img208.imageshack.us/img208/9738/unled123.jpg
so, what about this lateral pressure?where does this lateral pressure come from?
I also don't understand
how does buoyant force result from the difference in pressure between the surface of the cylinder in the fluid and its base?I can't imagine this at all.
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