40. (wo uniform triangular plates ABC and ABD of the same thickness, height and made of...
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40. (wo uniform triangular plates ABC and ABD of the same thickness, height and made of the same material are shown in the figure. If moment of inertias of these plates about the axis PQ are 1,and I,, which of the following statements is true? A BQ 1) I. >1, 2) I <1, 4) More information needed e = 1, uniform equilateral triangular lamina of side ( has a mass m. Its moment of inertia about the axis through the centroid and perpendicular to its plane is 41 1) m 2) -ml 3) m 4) None of these 12 uniform square plate is placed on a horizontal floor. When it is given an angular relocity mabout a vertical axis through one of its corners as shown in figure – 1, it takes time t, to come to a complete stop. Now the same square plate is given the 42. same angular velocity to rotate about another vertical axis through its centre as shown in figure - II. How long will it take to come to a complete stop now? Figre-I Figre-Il 1,/2 2) 21, /3 3)3t, /2 4) 2t, 43. Jeven identical circular planar discs, each of mass M and radius R are welded ymmetrically as shown in the figure. The moment of inertia of the arrangement about an axis normal to the plane and passing through the point P is O.. 181 19 MR 2 2) MR 55 3) MR 73 MR 3.5. 40. (wo uniform triangular plates ABC and ABD of the same thickness, height and made of the same material are shown in the figure. If moment of inertias of these plates about the axis PQ are 1,and I,, which of the following statements is true? A BQ 1) I. >1, 2) I <1, 4) More information needed e = 1, uniform equilateral triangular lamina of side ( has a mass m. Its moment of inertia about the axis through the centroid and perpendicular to its plane is 41 1) m 2) -ml 3) m 4) None of these 12 uniform square plate is placed on a horizontal floor. When it is given an angular relocity mabout a vertical axis through one of its corners as shown in figure – 1, it takes time t, to come to a complete stop. Now the same square plate is given the 42. same angular velocity to rotate about another vertical axis through its centre as shown in figure - II. How long will it take to come to a complete stop now? Figre-I Figre-Il 1,/2 2) 21, /3 3)3t, /2 4) 2t, 43. Jeven identical circular planar discs, each of mass M and radius R are welded ymmetrically as shown in the figure. The moment of inertia of the arrangement about an axis normal to the plane and passing through the point P is O.. 181 19 MR 2 2) MR 55 3) MR 73 MR 3.5.
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Related Book For
Calculus Early Transcendentals
ISBN: 978-0321947345
2nd edition
Authors: William L. Briggs, Lyle Cochran, Bernard Gillett
Posted Date:
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