Julie Schnitzel-Andrews (Yes, owner of the Bier-Schnitzel-Lederhosen Emporium) is thrown up into the air by the reveling B-S-L-E Biergarten crowd while singing "These are a Few of My Favorite Biers". Julie (say, relative to the ground where up is positive) experiences:

i) a positive velocity on the way up,ii) a brief moment of 'zero' velocity at the top and iii) a negative velocity on the way down. 

Describe her acceleration during each phase of this 'betrunken' journey. Consider in your response that the acceleration of a mass in the air is caused by gravity.