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How to measure

  1. Jul 23, 2010 #1
    hello people can anyone help me...?
    here is my objective...

    To measure how long a person stays on the air, when it jumps, until it reaches the ground at the same position.

    Given:
    Weight of the person
    Force exerted

    Find:
    Time
    Height of the jump


    ...plsss
     
  2. jcsd
  3. Jul 23, 2010 #2

    russ_watters

    User Avatar

    Staff: Mentor

    Welcome to PF.

    You said "measure", but then you listed some data as if you really want to calculate. If you want to measure, use a stopwatch. If you want to calculate, use f=ma and its derivatives.
     
  4. Jul 24, 2010 #3
    sorry my fault...

    it's calculate uuhm... please i want to now more about that formula... can you please discuss to me, further, about that formula...

    please... please...:smile:
     
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