Recent content by M.Samad-CNAQ-

  1. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    I don't know the angle, that's the problem. there are two unknown variables, time and angle.
  2. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    But both equations have two unknown variables. Cannot find time or theta unless I have one of them So what I understand is: For example: I assume theta to be 40. I can find time through: x(t)=v*cos(theta)*t so, t=x(t)/v*cos(theta)... I know horizontal distance and velocity and i assumed theta...
  3. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    Yes true, I can assume the value of theta but what are the possible ways to find time? How is this idea? For example: I assume theta to be 40. I can find time through: x(t)=v*cos(theta)*t so, t=x(t)/v*cos(theta)... I know horizontal distance and velocity and i assumed theta. the time should be...
  4. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    Oh typo, But i edited it. Answer is still the same..which is wrong..
  5. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    Yes true but i do not know what I am doing wrong in using equations of motion. I realized that the time I am calculating is wrong but do not know how to fix it.
  6. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    Sorry I do not understand your question. Can you please elaborate it?
  7. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    No, I have not considered it. I do not see why I need that here.
  8. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    That is what I am trying to do. I do not know how to find the appropriate landing time at ground above 30 meter.
  9. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    there it is
  10. M

    What Are the Optimal Launch Angles for a Projectile to Pass Through an Opening?

    Homework Statement A projectile is to be launched by a marksman through an opening in a wall which is 40 m away over a flat ground. The lowest part of the opening on the wall is 30 m above the ground and the opening’s gap is 10m high. The mechanism for launching the projectile generates an...
  11. M

    Engineering What are the voltages across different points in a circuit?

    Homework Statement http://i52.tinypic.com/11loqy0.png Find Va,Vb,Vab and current flowing from V1.(a,b,ab are subscripts.) Homework Equations hmm like Vx=Rx/Rt x EThe Attempt at a Solutioni can find voltages across resistors but i dunt know how to find voltages across points.
  12. M

    Circuit Diagrams Explained: 3-Line, Single Line & Ladder

    HI every one,i m confused between three line,single line and ladder circuit diagrams.Plz tell brief discription about them.
  13. M

    Electrical or Mechanical: Which Engineering Field Should You Choose?

    Hi Everyone, I m confused which engeenering field shud i choose,electrical or mechanical.Which is the main difference b/w thm and wat types of jobs both offer.also, which one is harder. Hoping for discriptive answer.Thank you.
  14. M

    Add or Subtract? Solve Voltage Math Problem

    Thnx.Was confused in that.