Would an hourglass on a rocket going up empty faster than one on the ground?

[hyrodi]

Just wondering. Would appreciate any input! :)

 

[zhermes]

What do you think? :P

 

[hyrodi]

I think that if the rocket was accelerating then the hourglass would indeed empty faster. I'm trying to figure out why, though...

 

[Phrak]

If the hourglass does empty faster it is not due in much part to the downward force on the sand above the neck.

 

[zhermes]

I think that if the rocket was accelerating then the hourglass would indeed empty faster. I'm trying to figure out why, though...

Well, what makes the sand fall in the first place? What effect would vertical acceleration have on this cause?