Question 9 of 19 Map Sapling Learning macmillan leaming Each of the objects abov

Question

Question 9 of 19 Map Sapling Learning macmillan leaming Each of the objects above is composed of identical thin sticks of uniformly distributed mass 8.11 kg and length 0.427 m. What is the moment of inertia of each object about a rotation axis perpendicular to the screen and passing through the black dot? Number Number Number Number 493 kg m 615 kg m 3.943 kg· | | | 2.834 kg m There is additional feedback available! View this feedback by clicking on the bottom divider bar. Click on the divider bar again to hide the additional feedback Incorrect Close

Explanation / Answer

IA = 4 ( M L^2 / 12)

IA = (4 x 8.11 x 0.427^2 / 12)

IA = 0.493 kg m^2 ........Ans

ID = (M L^2 / 12 ) + ( M L^2 / 12 + M L^2) + ( M L^2/ 3)

Id = M L^2 / 6 + M L^2 + M L^2 / 3

ID = 1.5 M L^2

ID = 2.218 kg m^2 .........Ans

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