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Projectile Speed

  1. Oct 16, 2009 #1
    Would anyone care to take a gander at this problem and help me find the solution.

    What I think the answer is
    figure 1: same
    figure 2: less

    figure 1: same
    figure 2: smaller

    I'm pretty much basing this off of intuition but if anyone could let me know what formula to use to solve the problem, i would appreciate it
     

    Attached Files:

  2. jcsd
  3. Oct 16, 2009 #2

    Andrew Mason

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    Your answers to 1 are correct. The correct answer to question 2 is: smaller and smaller.

    In figure 1 the balls reach the same height so they have the same vertical speed at launch BUT ball B has more horizontal speed. That means that B has more kinetic energy => more launch speed.

    AM
     
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