Isolating time from the displacement equation

[kencamarador]

Δd= Vi Δt + 1/2 aav Δt^2

I need to isolate Δt

The Δd is displacement not distance

 

[rock.freak667]

I think aav would just be 'a' right?

Well what you have on the right side is a quadratic equation, so try to complete the square.

 

[tiny-tim]

(or use the standard -b ±√etc quadratic equation formula … same result )