Finding mass with forcce and speed

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Homework Statement


I need to find the mass of the enterprise.
I have the given...
2 pods (pulling the enterprise) : F=2500kdyn each.
t1 : v1 = 0.62km/s
t2: v2 = 12km/s
Time between those statements : (delta)t=11s

Homework Equations



v=m/s
...I don't know which equation to use, everything I have found to find mass or acceleration needs each other figured out first, which is impossible.

The Attempt at a Solution



Force at 50Newtons.
I am math/physics dumb and haven't taken this stuff in years. I need a place that will show me a walkthrough because I don't know WHERE TO START.
 
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I'm pretty dumb at physics too but here is the way I look at it. You are given two speeds, and a time, which then you can use the acceleration formula. a = (Vf-Vi)/(t). Now you are given a force and found acceleration, F=MA. Solve for mass.
 
All figured out, thank you!