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Help With Kinematics/Work, Energy, Power Problem

  1. Mar 29, 2009 #1
    1. The problem statement, all variables and given/known data
    Calculate the velocity a 1.0g raindrop would reach if it fell from a height of 1.0km. You may ignore all forces of friction.

    2. Relevant equations
    Fg = mg, where g = 9.81 m/s^2
    W = Fparallel x d

    3. The attempt at a solution
    I used Fg = mg to find that Fg = 0.00981 N.
    Then, I had no clue what formula to use after this :S.

  2. jcsd
  3. Mar 29, 2009 #2


    User Avatar
    Gold Member

    There's a connection between:

    you're starting and ending velocity
    your acceleration

    hint: assume the drop starts from rest... so you know the starting velocity. And the acceleration is also a known constant.
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