Dumb Question Of The Day
How can a snap ring "pop out" since it's under pressure?
Centripetal force.
a net force that acts on an object to keep it moving along a circular path. any object traveling along a circular path of radius with velocity experiences an acceleration directed toward the center of its path, a = v 2 r
my rocket scientist friend explained it to me, a dumbass mechanic, thusly: imagine bouncing a round rubber ball on the concrete floor. when it hits, it deflects and the "circle" now becomes deformed and oblong, and that energy has to go
somewhere, so if the C shape is perpendicular to the "floor" as the circle deforms it closes the gap of the C. it doesn't always spring back into place. and that ball bounces 166 times a second*.
eta: on the 166 # i forget what rpm that was calculated at, but rest assured it was dead on balls accurate; the dude sent a rover to mars.