The moment of inertia(惯性力矩) of a body(物体) depends on the location of the axis about which the moment of inertia is computed.
举一反三
- If the section figure has a symmetry axis, then for the figure ( ) to its symmetry axis. A: Both the static moment of inertia and the moment of inertia are not zero; B: Both the static moment of inertia and the moment of inertia are zero; C: The static moment of inertia is not zero, the moment of inertia is zero; D: The static moment of inertia is zero, the moment of inertia is not zero.
- At bottom dead center, the centerline of the connecting rod usually coincides with the（） A: angularity of the piston motion B: inertia moment from the piston C: centerline of the cylinder D: centerline of the king pi
- The area of section is A, the centroid is C and the moment of inertia of section with respect to the z axis is[img=14x22]1803a25ae5167bc.png[/img] , then [img=21x22]1803a25aee78117.png[/img] is .[img=185x110]1803a25af82e370.jpg[/img] A: [img=55x26]1803a25b03408a9.jpg[/img] B: [img=99x21]1803a25b0d903ef.jpg[/img] C: [img=71x53]1803a25b1883f79.jpg[/img] D: [img=85x56]1803a25b22f93d9.jpg[/img]
- It’s the Axes System used to define the Newton's Laws of Motion. A: Inertia B: Earth-fixed C: Body D: Navigational
- We hadn't met for about 15 years, but I recognized her ______ I saw her. A: the moment B: the moment when C: for the moment D: at the moment when