Mechanical Engineering: Ch 12: Moment of Inertia (13 of 97) Second Moment of Area: Ex. 2

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In this video I will find the second moment of area I(y)=? of a right triangle of negative slope, example 2.

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The ultimate mathematical definition of what is BALANCED inertia/INERTIAL RESISTANCE is F=ma AND E=MC2 (ON/IN BALANCE):

UNDERSTANDING WEIGHT AS BALANCED AND INTERACTIVE INERTIA/INERTIAL RESISTANCE:

Define “mass”. You cannot. BALANCED inertia/INERTIAL RESISTANCE is fundamental. Weight ultimately pertains to and involves what is BALANCED inertia/INERTIAL RESISTANCE. E=mc² is F=ma. Energy has/involves GRAVITY, AND ENERGY has/involves BALANCED inertia/INERTIAL RESISTANCE. “Mass"/ENERGY IS GRAVITY. (Weight necessarily pertains to distance in/of SPACE.) Gravity AND weight are characterized by electromagnetic/gravitational interaction. NOTE: “Inertia" is not properly defined AND understood. The new/correct designation is inertia/INERTIAL RESISTANCE.

By Frank DiMeglio

frankdimeglio
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Your videos are great thanks for making them, really helpful!!

danielabreu
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Why are the limits for dy 9 and y. Is that y the height from the x axis to the area segment or that y is equal to 3x?

mwenge
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Why are the limits of dy = y to 9 instead of 0 to 9. Why not then assume the limits of dx are x to 3?

ronallan
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Didn't get why the x(^2) and not xy

meumail