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Homework Help: Vector 2D Problem

  1. Sep 27, 2006 #1
    I would really appreciate it if you could help me out with this type of problem.....I'm struggling a bit on the order of work that I need to do.

    Problem: The ball is fired from the ground with an initial speed of 1.70 x 10^3 m/s at an initial angle of 55 degrees to the horizontal. Neglecting air resistance, find:

    a) The balls horizontal range?
    b) The amount of time the ball is in motion?

    My Thoughts: I'm not sure which formulas to begin with......I'm still slightly confused on the operations with component and vector projectile problems in 2D.
  2. jcsd
  3. Sep 27, 2006 #2


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    Staff: Mentor

    This type of question is fundamntal. What equations of motion do you use for your foundation?
  4. Sep 28, 2006 #3
    This is a kinematics problem, not a vector problem.
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