guwh8434 guwh8434
  • 07-08-2019
  • Engineering
contestada

The product and polar second moments of area Ixy and Ip can be negative numbers. a) True b) False

Respuesta :

Netta00 Netta00
  • 13-08-2019

Answer:

b) False

Explanation:

We know that polar moment of inertia is given as follows

[tex]I_p = I_x+I_y[/tex]

And we know that [tex] I_x,I_y[/tex] can not be negative because these are the products of dimensions of structure.

But on the other hand [tex]I_{xy}[/tex] can be positive or negative .

[tex]I_{xy}[/tex] is not equal to the product of [tex] I_x\and \I_y[/tex].

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