Finding Time when given velocity, distance, and mass

[fantasy15]

Homework Statement

I only need help with a portion of a problem. I'd rather not post the entire question, its very long. I just need to know which kinematic equation I can use to solve for time.
I'm given:
-Mass
-Velocity (Initial and Final)
-Distance
-Gravity (1/6 of Earth's)

Homework Equations

I was thinking about using Vf=Vi+g*t

The Attempt at a Solution

Vf=Vi+g*t
Vf-Vi=g*t
(Vf-Vi)/g=t

Is that correct?

 

[NascentOxygen]

Hi fantasy15. http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif

If the body's motion is influenced by gravity alone, and gravity is constant, then that equation is applicable.