Question

The product second moment of area Ixy is found by multiplying Ix and Iy. a)True b)- False

Answer 1

Answer:

(b)False

Explanation:

$I_{xy}$ defined as

      $I_{xy}$ =$\int \left (x\cdot y\right )dA$

Where x is the distance from centroidal x-axis

           y is the distance from centroidal y-axis

          dA is the elemental area.

The product of x and y can be positive or negative ,so the value of  $I_{xy}$ can be positive as well as negative .

So from the above expressions we can say that the product of $I_{x},I_y$ is different from $I_{xy}$ .