Thank you for your reply! That method is much more straightforward.
I did eventually figure out what my text was trying to lead me towards with that equation.
In case it helps other beginners:
The equation properly rearranged is t=2V1/a. Therefore t= 1.1 seconds.
I have been asked to determine the length of time the ball will be in the air. I understand the basic concept, but the execution is tripping me up. It has been years since I have done a math course, and this is my first foray into physics, so I am a bit rusty. :)
A ball is thrown upwards at a...