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Homework Help: Projectile motion

  1. Sep 15, 2007 #1

    in a projectile motion, what law could be applicable to this sitaution?
    if u want an example, umm let's say..
    ur measuring porjectile motion for 45 degrees.,,
    hat law or theory could be applicable to this?
     
  2. jcsd
  3. Sep 15, 2007 #2

    Doc Al

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    Staff: Mentor

    The usual suspects: Newton's 2nd law and gravity.

    All projectile motion is essentially the same: The vertical motion is accelerated downward; the horizontal motion is constant speed.
     
  4. Sep 16, 2007 #3
    isnt it that to solve somehting like this needs a problem (according to the scientific method) and to make the problem, we have to base it on the objectives?
    then what would be the objectives on this problem?
    >to measure how far the 45 degree angle would be?
    thanks
     
  5. Sep 16, 2007 #4

    Doc Al

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    Staff: Mentor

    The laws regarding projectile motion are well known. Of course, to solve any problem you first need to know what the problem is. Do you have a specific problem in mind?
     
  6. Sep 16, 2007 #5
    As Doc Al asked you need a specific problem. If your talking about projectile motion a few things come to mind. The angle(can be 45 degrees), acceleration, velocity, position...
     
  7. Sep 16, 2007 #6
    umm.. i was planning to measure the projectile motion ith differnet angles..
    so my problem would be um..
    which angle will launch the farthest distance
    is that enough?
     
  8. Sep 17, 2007 #7
    What angle will maximize a projectiles horizontal distance? I think that would be a bit more exact.
     
  9. Sep 18, 2007 #8
    thank you so much all!
     
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