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Homework Help: Online Homework due by 12 AM tonight

  1. Oct 16, 2007 #1
    1. The problem statement, all variables and given/known data
    During World War I, the Germans had a gun
    called Big Bertha that was used to shell Paris.
    The shell had an initial speed of 1.13 km/s at
    an initial inclination of 42.4Degrees to the horizontal.
    The acceleration of gravity is 9.8 m/s2 :
    How far away did the shell hit? Answer in
    units of km.

    How long was it in the air? Answer in units
    of s.

    ----------------------------------------------------------------

    An autographed baseball rolls off of a 0.81 m
    high desk and strikes the floor 0.28 m away
    from the desk.
    The acceleration of gravity is 9.81 m/s2 :
    How fast was it rolling on the desk before it
    fell off?
    Answer in units of m=s.

    ----------------------------------------------------------------



    2. Relevant equations
    I don't know


    3. The attempt at a solution
    I'm not gonna try an answer and get deducted points from this online HW system. Please answer first and then we can discuss these later. Hopefully later tomorrow. I have my PSATS tomorrow and I really need to finish this up and study for em. Thanks
     
  2. jcsd
  3. Oct 16, 2007 #2

    hage567

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    Doesn't mean you can't show us your work. We will tell you if you're doing things right.
     
  4. Oct 16, 2007 #3
    I can't show the work if I don't know the equations
     
  5. Oct 16, 2007 #4

    Pyrrhus

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    Open your textbook and study the chapters then come back to us with an attempt.
     
  6. Oct 16, 2007 #5
    I was never given a Pre-AP Textbook when I went advanced from Academic. My Academic book is poorly written as if its more like a Physics for Dummies book
     
  7. Oct 16, 2007 #6

    hage567

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    Homework Helper

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