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Homework Help: Made a small mistake and can't figure out what to do->Projectile motion

  1. Dec 20, 2007 #1
    [SOLVED] Made a small mistake and can't figure out what to do-->Projectile motion

    1. The problem statement, all variables and given/known data
    Ball is launched at 62 degrees above horizontal at 22 m/s. What distance does the ball travel?


    2. Relevant equations

    x=x0+vx0t


    3. The attempt at a solution

    x0=0
    vy0=22 m/s
    y0=0
    theta=62
    vy0=22sin62=19 m/s
    vx0=22cos62=10 m/s

    but I messed up on my time calculation
    t=vy0/gravity.
    that's not right. what's the correct time calculation?
     
  2. jcsd
  3. Dec 20, 2007 #2

    rl.bhat

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    Homework Helper

    t=vy0/gravity.
    that's not right. what's the correct time calculation?

    this time is to reach the maximum height. Total time is twice this time.
     
  4. Dec 20, 2007 #3
    ok, so i just need to multiply that value by 2? thank you.
     
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