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Helps on Projectile motion and moment of inertia

  1. Jul 25, 2009 #1
    Hello guys , i am new here .

    I am currently doing my college assignment i am required to explain a few physics principle , but currently i am stuck with these two principle :

    i) projectile
    ii) moment of inertia in rotational of a rigid body

    I am required to answer the question that stated as follow :

    EXPLANATION ON THE CAUSES AND EFFECTS FROM THE PRINCIPLES for both principle
    SUGGESTIONS TO IMPROVE, MINIMIZE OR AVOID THE PROBLEMS for both principle

    Hope that everyone could help me or give me some hints and tips on this question

    1. The problem statement, all variables and given/known data

    EXPLANATION ON THE CAUSES AND EFFECTS FROM THE PRINCIPLES
    SUGGESTIONS TO IMPROVE, MINIMIZE OR AVOID THE PROBLEMS


    2. Relevant equations

    EXPLANATION ON THE CAUSES AND EFFECTS FROM THE PRINCIPLES
    SUGGESTIONS TO IMPROVE, MINIMIZE OR AVOID THE PROBLEMS

    3. The attempt at a solution

    Sorry , i have absolutely no idea on it .

    Thanks
     
  2. jcsd
  3. Jul 25, 2009 #2
    welcome

    in projectile,
    CAUSE: you must consider the forces acting while in an object is in a projectile motion, stating any assumptions.
    EFFECTS: This will cause the object to go in a path which has a special name

    In moment of inertia
    CAUSE: well, i'm not a very advanced physicist. as far as i know, moment inertia is there, exists in every singe matter. nothing causes it. It is the equivalent of mass in translational motion.

    EFFECTS: try to think what effect does a mass have (consider the 3 Newton's laws). And the apply it to rotational motion to possibly have the effects of a moment of inertia.

    Have a read at least at wiki
    http://en.wikipedia.org/wiki/Projectile_motion" [Broken]
    http://en.wikipedia.org/wiki/Projectile_motion" [Broken]

    i leave the 2nd part of the question for you to think about
     
    Last edited by a moderator: May 4, 2017
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