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Homework Help: A ball is thrown straight up from ground level

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  1. Oct 18, 2015 #1
    A ball is thrown straight up from ground level. After a time 6.1 s, it passes a height of 136.1 m. What was its initial speed? The accelera-
    tion due to gravity is 9.8 m/s2 . Answer in units of m/s.

    2. Relevant equations


    3. The attempt at a solution
     
  2. jcsd
  3. Oct 18, 2015 #2

    CWatters

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    Please show your attempt at the problem (forum rules).
     
  4. Oct 18, 2015 #3
    Delta x= 136.1
    T=6.1
    A=9.8
    Vi*t+1/2at^2
     
  5. Oct 18, 2015 #4
    I did it
     
  6. Oct 19, 2015 #5

    CWatters

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    That last equation is incomplete.

    Vi*t+1/2at^2 = ?
     
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