1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Finding mass with forcce and speed

  1. Sep 21, 2008 #1
    1. The problem statement, all variables and given/known data
    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

    2. Relevant equations

    ...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.

    3. 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.
  2. jcsd
  3. Sep 21, 2008 #2
    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.
  4. Sep 21, 2008 #3
    All figured out, thank you!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook