VIT - VITEEE 2025
National level exam conducted by VIT University, Vellore | Ranked #11 by NIRF for Engg. | NAAC A++ Accredited | Last Date to Apply: 31st March | NO Further Extensions!
Parallel and Perpendicular Axis theorem is considered one the most difficult concept.
34 Questions around this concept.
For the given uniform square lamina ABCD, whose centre is O,
Consider a thin uniform square sheet made of a rigid material. If its side is 'a', mass m and moment of inertia I about one of its diagonals, then :
Consider a uniform square plate of side a and mass m. The moment of inertia of this plate about an axis perpendicular to its plane and passing through one of its corners is
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The moment of inertia of a solid sphere, about an axis parallel to its diameter and at a distance of x from it, is 'I(x)'. Which one of the graphs represents the variation of I(x) with x correctly ?
Two identical spherical balls of mass M and radius R each are stuck on two ends of a rod of length 2R and mass M (see figure) The moment of inertia (MR2) of the system about the axis passing perpendicularly through the centre of the rod is :
From the theorem of the perpendicular axis. If the lamina is in the Y-Z plane
The M.I. of a solid cylinder of mass M and radius R about a line parallel to the axis of the cylinder and lying on the surface of the cylinder is
National level exam conducted by VIT University, Vellore | Ranked #11 by NIRF for Engg. | NAAC A++ Accredited | Last Date to Apply: 31st March | NO Further Extensions!
Ranked #42 among Engineering colleges in India by NIRF | Highest CTC 50 LPA , 100% Placements | Last Date to Apply: 28th March
Parallel Axis Theorem-
$I_{b b^{\prime}}=I_{a a^{\prime}}+M h^2$
$b b^{\prime}$ is axis parallel to $a a^{\prime} \& a a^{\prime}$ an axis passing through the centre of mass.
Perpendicular Axis theorem-
$
I_z=I_x+I_y
$
(for a body in XY plane )
Where $I_z=$ moment of inertia about the z axis
$I_x I_y$ :moment of inertia about $\mathrm{x} \& \mathrm{y}$ axis in the plane of body respectively.
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