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2 Feb 2012 13:30:12 IST
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what is the moment of inertia of a rigid rod inclined on x-y axis at an angle thete with x axis?
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2 Feb 2012 22:59:23 IST
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integration of dm.r(perpendicular)*2
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2 Feb 2012 23:08:11 IST
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i knw that formula.plz would you show me the step..... y x mass of rod=mlength=langle with x-axis=theta
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2 Feb 2012 23:12:34 IST
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well sorry fr the above 1..ws thinking something else...the answer is (ml*2.cos square theta)/3
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3 Feb 2012 01:00:41 IST
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can u just explain me whats moment of inertia.... i know to derive i for many figures.... still am not able 2 get an idea of it as actually what it is...
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4 Feb 2012 00:56:27 IST
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plz would u tell me how u did??and it in the above case it the rod is allowed to slip along the x axis at any instant what will be the angular speed?
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4 Feb 2012 14:51:02 IST
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well moment of inertia in rotational motion is analgous to mass in linear motion... moment of inertia is the measurement of the resistance of a body to change its rotational motion..
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4 Feb 2012 14:55:10 IST
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well soumava take an element on the rod .say dx..at a distance x from one side of rod. di=dm.r(square)..as rod is uniform so dm=m/l(dx)..note here r=perpendicular distance of element from axis... use all these concept ...integrate the relation from zero to l and u ll get the solution..
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5 Feb 2012 17:38:12 IST
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thanksit helped mei got d answer
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7 Feb 2012 19:19:43 IST
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welcome..
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13 Feb 2012 15:54:46 IST
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hey you need to say the moment of inertia about which axis. The answer will depend on which axis
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